Here are all six complete case sheets:
LONG CASE 4 - PERIPHERAL VASCULAR DISEASE (PVD)
PATIENT DETAILS
| |
|---|
| Name | Mohammed Ismail |
| Age | 45 Years |
| Gender | Male |
| Occupation | Daily wage labourer |
| Residence | Tumkur |
CHIEF COMPLAINTS
- Pain in both lower limbs (left > right) for 8 months
- Blackish discolouration of left foot for 10 days
HISTORY OF PRESENTING COMPLAINTS
- 8 months: Cramping-type pain in calf region of both lower limbs (left > right), appearing after walking ~1 km, relieved by rest - intermittent claudication (Fontaine Stage IIb)
- 1 month: Rest pain in left leg - progression to Fontaine Stage III
- 10 days: Blackish discolouration of left foot; developed small wound on dorsum of left foot; visited local hospital 5 days ago for debridement - Fontaine Stage IV (gangrene)
- No h/o trauma, stroke/TIA, chest pain, postprandial abdominal pain (mesenteric ischaemia), upper limb pain
PAST HISTORY
- Not a k/c/o DM / HTN / IHD / TB
- No previous surgeries
PERSONAL HISTORY
- Smoking: 20 pack-years (stopped 1 month ago - major risk factor)
- No significant family history
GENERAL PHYSICAL EXAMINATION
| Parameter | Finding |
|---|
| Built | Poor |
| Pulse | Likely reduced in lower limbs |
| BP (arm) | Normal |
| Pallor / Icterus / Clubbing | Absent |
LOCAL EXAMINATION (Lower Limbs)
Inspection:
- Blackish discolouration of left foot - dry gangrene (line of demarcation present)
- Wound on dorsum of foot (post-debridement)
- Skin dry, shiny, hair loss, trophic changes (thin skin, brittle nails)
- Muscle wasting of calf bilaterally
Palpation:
- Skin temperature: Cool - bilateral lower limbs
- Capillary refill time: Prolonged (>3 sec)
- Peripheral pulses:
- Left: Absent - femoral, popliteal, dorsalis pedis, posterior tibial
- Right: Feeble - femoral, popliteal, dorsalis pedis, posterior tibial
- Sensation: Reduced in affected areas (ischaemic neuropathy)
Auscultation:
- Bruits over femoral/iliac region (may indicate stenosis)
- Buerger's test: Positive (pallor on elevation, rubor on dependency - reactive hyperaemia)
DIAGNOSIS
Peripheral Vascular Disease (Atherosclerotic Peripheral Arterial Disease) - Fontaine Stage IV
Left lower limb: Critical limb ischaemia with dry gangrene of left foot
Fontaine Classification:
| Stage | Features |
|---|
| I | Asymptomatic |
| IIa | Claudication >200m |
| IIb | Claudication <200m |
| III | Rest pain |
| IV | Ischaemic ulcer / gangrene |
INVESTIGATIONS
Bedside:
- Ankle-Brachial Index (ABI): <0.4 indicates severe disease (normal >0.9; critical ischaemia <0.4) (Tintinalli's EM)
- Buerger's test - angle at which pallor occurs; rubor on dependency
- Capillary refill time >6 seconds (as noted in Long Case 7 equivalent)
Blood:
| Investigation | Purpose |
|---|
| FBC | Anaemia, polycythaemia |
| Blood glucose / HbA1c | Exclude DM |
| Lipid profile | Dyslipidaemia (major risk factor) |
| Serum creatinine | Renal function (atherosclerosis affects renal arteries) |
| Coagulation profile | Pre-op, thrombophilia screen |
| ECG / Echo | Concurrent CAD assessment |
Imaging:
| Investigation | Purpose |
|---|
| Duplex Doppler USG | First-line - site and degree of stenosis/occlusion |
| CT Angiography (CTA) | Gold standard for surgical planning - maps run-off vessels |
| MR Angiography (MRA) | No contrast nephrotoxicity; good for distal vessels |
| Digital Subtraction Angiography (DSA) | Invasive gold standard; simultaneous angioplasty possible |
MANAGEMENT
Step 1 - Medical / Conservative (all patients):
- Absolute smoking cessation - single most important intervention
- Antiplatelet therapy - Aspirin 75-150 mg/day OR Clopidogrel 75 mg/day
- Statin therapy - Atorvastatin 40-80 mg/day (reduces cardiovascular events and may slow PAD progression)
- Control DM, HTN if present
- Cilostazol 100 mg BD (phosphodiesterase III inhibitor) - increases claudication distance
- Supervised exercise programme - improves collateral circulation
- Wound care - debridement, daily dressing
Step 2 - Revascularisation (Critical Limb Ischaemia):
Endovascular (preferred first-line for suitable anatomy):
- Percutaneous Transluminal Angioplasty (PTA) ± stenting - for iliac, femoral stenosis
- Balloon angioplasty with drug-eluting stent
Surgical Revascularisation:
- Aorto-bifemoral bypass - for aortoiliac occlusion (Leriche syndrome)
- Femoro-popliteal bypass - for SFA occlusion; autologous great saphenous vein preferred over synthetic graft
- Femoro-distal bypass - using reversed saphenous vein graft to tibial/peroneal vessels
- Endarterectomy - for localised disease
Step 3 - For Gangrene:
- Dry gangrene of toes/foot - allow to auto-amputate OR
- Amputation if wet/infected gangrene develops or revascularisation fails:
- Toe amputation / Ray amputation - for limited digital gangrene
- Transmetatarsal amputation
- Below-knee amputation (BKA) - preferred over AKA; better rehabilitation
- Above-knee amputation (AKA) - if BKA not feasible
VIVA QUESTIONS
Q1. What is intermittent claudication? What is its mechanism?
A. Cramping pain in muscles of the lower limb that appears on walking and is relieved by rest. Mechanism: Atherosclerotic narrowing of arteries → reduced blood flow → during exercise, oxygen demand exceeds supply → ischaemic metabolite accumulation (lactate, adenosine) → pain. Relieved by rest as demand drops and metabolites clear.
Q2. What is Fontaine Classification? Where does this patient fit?
A. Stage IV - critical limb ischaemia with gangrene. (See table above.)
Q3. What is the ABI and its significance?
A. Ankle-Brachial Index = ankle systolic BP / brachial systolic BP. Normal: 0.9-1.3. Claudication: 0.5-0.9. Rest pain: 0.3-0.5. Critical ischaemia / gangrene: <0.4. Values >1.3 suggest calcified incompressible vessels (DM). (Tintinalli's)
Q4. What are the differences between arterial and venous ulcers?
| Feature | Arterial Ulcer | Venous Ulcer |
|---|
| Site | Tips of toes, pressure points | Gaiter area (medial malleolus) |
| Pain | Very painful | Mild/moderate |
| Edge | Punched out | Sloping |
| Floor | Pale, necrotic | Sloughy, granulating |
| Surrounding skin | Shiny, cold, hair loss | Lipodermatosclerosis, pigmentation |
| Pulse | Absent | Present |
| ABI | <0.9 | Normal |
Q5. What is dry vs. wet gangrene?
A. Dry: Sterile ischaemic necrosis; part becomes mummified; clear line of demarcation; non-spreading; no systemic toxaemia - seen in gradual arterial occlusion, atherosclerosis. Wet: Superadded infection + venous obstruction; oedematous, blistered, foul-smelling; no demarcation; spreading; severe systemic toxaemia - seen in DM, venous gangrene.
Q6. What is Leriche's syndrome?
A. Atherosclerotic occlusion of the aortic bifurcation causing: bilateral buttock/thigh claudication, impotence, and absent femoral pulses. Requires aorto-bifemoral bypass.
LONG CASE 7 - PVD (BUERGER'S DISEASE / ATHEROSCLEROTIC PAD WITH GANGRENE)
PATIENT DETAILS
| |
|---|
| Name | Karim Bhai |
| Age | 40 Years |
| Gender | Male |
| Occupation | Auto driver |
| Address | Sirsi |
CHIEF COMPLAINTS
- Discolouration of 2nd and 3rd toes of left foot - 1 year
- Wound over dorsum of left foot - 6 months
HISTORY OF PRESENTING COMPLAINTS
- 1 year: Insidious blackish discolouration of tips of left 2nd and 3rd toes, progressively extending proximally to the base; associated loss of sensation over each toe
- 6 months: Small wound on dorsum of left foot, insidious, gradually increasing; extremely painful; non-foul smelling, no discharge
- Bilateral calf pain after walking ~200m, relieved by rest - intermittent claudication (Fontaine IIb/III)
- No trauma, no DM/HTN history
PERSONAL HISTORY
- Beedi smoker 20 years (1 pack/day) - stopped 6 months ago (strongly suggests Buerger's disease / TAO - Thromboangiitis Obliterans in a young smoker)
- Alcohol: 15 years
LOCAL EXAMINATION
Inspection:
- Blackish discolouration of left 2nd and 3rd toes extending to base - digital gangrene
- Clear line of demarcation (dry gangrene)
- 6×4 cm oval ulcer on dorsum of left foot - erythematous margins, sloping edge, slough + necrotic tissue on floor - ischaemic ulcer
- Skin: dry, hair loss, brittle nails - trophic changes
- Fuchsig's test negative (left leg) - indicates non-filling of superficial veins, confirming arterial insufficiency
Palpation:
- 2nd and 3rd toes: insensitive, no temperature sensation
- Ulcer: painful, tender; base = subcutaneous tissue
- Both lower limbs: cool on touch
- CRT: 6 sec right, 8 sec left (severely impaired)
- Peripheral pulses - Left: NO pulses below femoral artery; Right: Dorsalis pedis, anterior tibial, posterior tibial - feebly palpable
Auscultation: No bruit over either leg
DIAGNOSIS
Buerger's Disease (Thromboangiitis Obliterans - TAO) with Critical Limb Ischaemia
Left foot: Dry gangrene of 2nd and 3rd toes + ischaemic ulcer, Fontaine Stage IV
Why Buerger's vs. Atherosclerosis:
- Young age (40 years)
- Heavy beedi smoker (beedis have higher nicotine content)
- Distal small vessel involvement (digits first)
- Progressive distal gangrene
- No DM, HTN, dyslipidaemia
INVESTIGATIONS
Same as Long Case 4 plus:
- Allen's test - assess upper limb involvement (TAO often affects upper limbs too)
- Segmental limb pressures - confirms distal occlusion pattern
- DSA / CTA - classic "corkscrew collaterals" around occlusion pathognomonic of Buerger's disease
- Biopsy of affected vessel (rarely done) - shows acute segmental thrombosing vasculitis with preservation of internal elastic lamina
- Hypercoagulability screen - ANA, ANCA (to exclude vasculitis mimics)
MANAGEMENT
- Absolute and permanent smoking cessation - MANDATORY; only intervention that halts progression
- Antiplatelet therapy - Aspirin/Clopidogrel
- Iloprost (prostacyclin analogue) IV infusion - improves tissue perfusion, reduces ulcer pain
- Calcium channel blockers (Nifedipine) - vasodilation
- Wound care - antiseptic dressings
- Sympathectomy (lumbar) - for rest pain palliation; increases skin blood flow; does NOT improve claudication
- Revascularisation - limited options due to distal small vessel involvement; bypass rarely feasible; omental transfer (rarely)
- Amputation - if gangrene extends, infection supervenes, or conservative management fails; aim for most distal level that heals
VIVA QUESTIONS
Q1. What is Buerger's disease?
A. Thromboangiitis Obliterans (TAO) - a non-atherosclerotic segmental inflammatory vasculitis affecting small and medium-sized arteries and veins of the distal extremities, strongly associated with tobacco use, predominantly in young males.
Q2. How do you distinguish TAO from atherosclerotic PAD?
| Feature | TAO (Buerger's) | Atherosclerotic PAD |
|---|
| Age | <45 years | >50 years |
| Gender | Young male, heavy smoker | Middle-aged, multiple risk factors |
| Vessels | Small/medium, distal | Large/medium, proximal |
| Lipids/DM | Normal | Often abnormal |
| Angiography | Corkscrew collaterals | Diffuse atherosclerosis |
Q3. What is Fuchsig's test?
A. The patient lies supine; examiner elevates the leg to 45° and compresses the veins at the ankle. On releasing, superficial veins should fill within 5-10 seconds. In Buerger's disease (arterial insufficiency), veins remain collapsed (negative test) as there is inadequate arterial inflow to fill the venous system.
Q4. What is the role of sympathectomy in PVD?
A. Lumbar sympathectomy (surgical or chemical/phenol) blocks sympathetic vasoconstriction to the skin vessels → increased skin blood flow. Useful for: rest pain, ischaemic ulcers, hyperhidrosis-related fissures. Does NOT significantly improve claudication (muscle vessels are not under sympathetic control during exercise). Can be done laparoscopically.
LONG CASE 6 - BREAST CARCINOMA
PATIENT DETAILS
| |
|---|
| Name | Lata |
| Age | 56 Years |
| Gender | Female |
| Address | Dharmapuri |
CHIEF COMPLAINTS
- Lump in the left breast for 6 months
HISTORY OF PRESENTING COMPLAINTS
- Insidious onset, gradually progressive
- Initially 2×2 cm → now 8×8 cm - rapid enlargement over 6 months
- Distortion of shape of left nipple - nipple retraction/deviation
- No pain over the lump, no ulceration
- No nipple discharge or bleeding
- No trauma to breast
- No swelling in same breast, opposite breast, or axillae (at presentation)
PAST / FAMILY / PERSONAL HISTORY
- Not a k/c/o DM/HTN/IHD/TB
- No previous surgeries
- No significant family history
GENERAL PHYSICAL EXAMINATION
- Moderately built and nourished; conscious, oriented
- Pulse: 88/min; BP: 110/70 mmHg
- PICCLE: Pallor/Icterus/Cyanosis/Clubbing/Lymphadenopathy/Edema - to be checked
LOCAL EXAMINATION - LEFT BREAST
From case sheet + photographs:
Inspection:
- Asymmetry of breasts; left breast larger
- Nipple retraction / deviation - left nipple
- Skin changes: to note peau d'orange (dimpling), erythema, satellite nodules
- Dilated veins over left breast
Palpation:
- Single, ovoid, 8×7 cm, hard, non-tender lump
- Moves with breast tissue (not fixed to chest wall)
- Surface smooth with well-defined margins
- Occupies upper outer + inner quadrants + central quadrant (extending across)
- Clinical photographs show: lump being measured (~8 cm), hard mass, nipple distortion
Left Axilla:
- Single, 2×2 cm, firm, non-tender, mobile lymph node in left central group (level I)
Right breast and axilla: Normal
DIAGNOSIS
Primary Diagnosis:
Carcinoma of Left Breast - T3 N1 M0 (Stage IIIA)
TNM Staging:
- T3: Tumour >5 cm (this is 8 cm)
- N1: Mobile ipsilateral axillary lymph node involved
- M0: No distant metastasis (to be confirmed with staging)
Most likely histology: Invasive Ductal Carcinoma (IDC) - most common (70-80%)
INVESTIGATIONS
Diagnostic Triple Assessment:
- Clinical Examination (done)
- Imaging - Mammography ± USG breast
- Histopathology - Core biopsy (preferred over FNAC)
Imaging:
| Investigation | Findings expected |
|---|
| Bilateral Mammogram | Irregular spiculated mass with microcalcifications (BIRADS 5 = highly malignant) |
| USG Breast | Hypoechoic irregular mass with posterior acoustic shadowing; axillary node assessment |
| MRI Breast | Extent of disease, multifocality, chest wall involvement |
Histopathology:
- Core needle biopsy (Trucut biopsy) - provides tissue diagnosis + receptor status
- Receptor status (IHC):
- ER (Oestrogen Receptor)
- PR (Progesterone Receptor)
- HER2/neu
- Ki-67 (proliferation index)
- Triple-negative (ER-/PR-/HER2-) = poorest prognosis
Staging Investigations:
| Investigation | Purpose |
|---|
| CECT Chest + Abdomen | Lung, liver, adrenal metastases |
| Bone scan / PET-CT | Bone metastases |
| Serum LFTs, ALP | Liver/bone involvement |
| CA 15-3 (tumour marker) | Baseline, monitoring |
| FBC, coagulation profile | Pre-operative |
MANAGEMENT
Step 1 - Multidisciplinary Team (MDT) approach
Step 2 - Neoadjuvant Chemotherapy (NAC)
- For T3/T4 or N+ disease - recommended before surgery
- Aims: downstage tumour → potentially allow breast conservation; assess chemosensitivity
- Regimen: Anthracycline-based (AC) followed by Taxane (T): AC×4 → Paclitaxel×4
- Response assessed by clinical exam + imaging after 3 cycles
Step 3 - Surgery
Option A: Modified Radical Mastectomy (MRM) - standard for this case
- En bloc removal of: all breast tissue + nipple-areola complex + level I + II axillary lymph nodes + pectoralis minor fascia (Patey's operation)
- Pectoralis major preserved (unlike Halsted radical)
- Indication here: Large tumour (8 cm), central location, nipple involvement
Option B: Breast-Conserving Surgery (BCS/Lumpectomy)
- Wide local excision + sentinel lymph node biopsy (SLNB) / axillary clearance
- Requires: tumour <4-5 cm, adequate margins, patient preference, facility for radiotherapy
- Not ideal here given 8 cm tumour and nipple distortion
Axillary Management:
- SLNB - if axillary node clinically suspicious but small and mobile
- Axillary lymph node dissection (ALND) Level I-III - for confirmed N1 disease
Step 4 - Adjuvant Therapy
| Treatment | Indication |
|---|
| Radiotherapy | After BCS (mandatory); after MRM if T3/T4 or ≥4 nodes positive |
| Chemotherapy | High-risk features: node positive, triple negative, HER2+ |
| Endocrine therapy | ER/PR positive: Tamoxifen (premenopausal) or Aromatase inhibitor (postmenopausal) ×5-10 years |
| Trastuzumab (Herceptin) | HER2+ disease ×1 year |
VIVA QUESTIONS
Q1. What is the triple assessment for a breast lump?
A. Clinical examination + Imaging (USG/mammogram) + Pathology (FNAC/core biopsy). If all three are concordant (benign or malignant), the diagnosis is reliable. Discordant results require repeat or excision biopsy.
Q2. What are the clinical signs suggesting malignancy in a breast lump?
A. Hard consistency, irregular border, fixity to skin/chest wall, skin changes (peau d'orange, dimpling, erythema), nipple retraction/deviation/discharge (bloody), axillary lymphadenopathy, satellite nodules.
Q3. What is peau d'orange? What causes it?
A. "Orange peel" skin - oedematous, pitted appearance over breast skin. Cause: lymphatic obstruction by tumour cells in the subdermal lymphatics → oedema of the skin; hair follicles remain tethered → pitting appearance.
Q4. What are the levels of axillary lymph nodes?
A. Classified in relation to pectoralis minor muscle:
- Level I: Lateral to pectoralis minor (anterior, posterior, lateral groups)
- Level II: Deep to pectoralis minor (central group, interpectoral/Rotter's nodes)
- Level III: Medial to pectoralis minor (apical/infraclavicular)
This patient has central group (Level I) involvement.
Q5. What is the difference between MRM and Halsted radical mastectomy?
A. Halsted removes pectoralis major and minor in addition to breast + axillary nodes (causes severe morbidity, arm oedema). MRM (Patey) preserves pectoralis major → better functional outcome; equivalent survival. MRM is the current standard.
Q6. What is the significance of ER/PR/HER2 status?
A. Determines adjuvant therapy selection:
- ER/PR+: Endocrine therapy (Tamoxifen/AI) - 50% relative risk reduction in recurrence
- HER2+: Trastuzumab (monoclonal antibody against HER2) + Pertuzumab
- Triple negative (ER-/PR-/HER2-): Chemotherapy only; BRCA mutation testing; poorest prognosis
LONG CASE - INDIRECT INGUINAL HERNIA
PATIENT DETAILS
| |
|---|
| Age | 60 Years |
| Gender | Male |
| Address | Hampi |
CHIEF COMPLAINTS
- Swelling in right groin since 1 year
HISTORY OF PRESENTING COMPLAINTS
- Single swelling, appeared above groin crease, then extended into scrotum
- Initially small, gradually increasing in size
- Increases in size with cough, straining, lifting weight
- Disappears on lying down - reducible
- No pain, no vomiting, no bowel changes
LOCAL EXAMINATION
- Pyriform shaped swelling, 8×4 cm (or 5×6 cm in repeat exam)
- Extending from above and medial to inguinal ligament down into scrotum
- Cough impulse: PRESENT - expansile impulse on coughing
- Penis in midline
- Spontaneously reduces in supine position - reducible hernia
- Cannot get above the swelling - confirms inguino-scrotal nature
- Consistency: doughy, granular (omentum/bowel)
- Testis palpable SEPARATELY from swelling - distinguishes from hydrocele
Special Tests:
- Ring Occlusion Test: On occluding deep ring with thumb → swelling DID NOT appear on coughing = Indirect hernia (deep ring occlusion controls indirect hernia)
- Zieman's test: Cough impulse at index finger (pointing at deep ring) - confirms indirect
- Finger Invagination test: Cough impulse felt at TIP of finger - confirms indirect (direct = side of finger)
DIAGNOSIS
Right-sided Reducible Indirect Inguinoscrotal Hernia
INVESTIGATIONS
Pre-operative:
- FBC, RFT, LFT, blood sugar, urine routine
- ECG, CXR (anaesthetic fitness)
- Coagulation profile
- USG Groin - if diagnosis in doubt; differentiates hernia from hydrocele, lymph nodes
- Spirometry if chronic cough (identify cause)
MANAGEMENT
Surgical - Standard Treatment: Inguinal Hernia Repair
Open Tension-Free Mesh Repair:
- Lichtenstein's Repair - most common operation worldwide; polypropylene mesh placed in the inguinal canal over the posterior wall; tension-free (Bailey & Love; Current Surgical Therapy 14e)
- Recurrence rate: ~1% (vs. 10-20% for tissue repairs)
Laparoscopic:
- TAPP (Transabdominal Preperitoneal) - mesh placed laparoscopically
- TEP (Totally Extraperitoneal) - avoids peritoneal cavity; preferred
- Advantage: faster recovery, bilateral repair simultaneously
For Inguinoscrotal hernia:
- Herniotomy (ligation of sac at deep ring) + herniorrhaphy/hernioplasty
- Sac dissected from cord structures; high ligation at deep ring; mesh reinforcement
VIVA QUESTIONS
Q1. What is the difference between indirect and direct inguinal hernia?
| Feature | Indirect | Direct |
|---|
| Age | Young | Old |
| Origin | Through deep ring (lateral to inferior epigastric vessels) | Through Hesselbach's triangle (medial to inferior epigastric) |
| Goes into scrotum | Yes | Rarely |
| Ring occlusion test | Controlled | Not controlled |
| Invagination test | Tip of finger | Side of finger |
Q2. What is Hesselbach's triangle?
A. Bounded by: inferior epigastric vessels (lateral), inguinal ligament (inferior), lateral border of rectus sheath (medial). Direct hernias protrude through this triangle.
Q3. What is the significance of "cannot get above the swelling"?
A. It confirms the swelling is descending from the inguinal canal (inguinoscrotal) rather than arising primarily in the scrotum (hydrocele/testicular mass). A swelling that you can "get above" is scrotal in origin.
Q4. What is Lichtenstein's repair?
A. Open tension-free mesh hernioplasty: polypropylene mesh is placed in the inguinal canal over the posterior wall (transversalis fascia), sutured to the inguinal ligament below and conjoint tendon above, with a slit for the spermatic cord. Recurrence <1%. Most common hernia repair in resource-rich countries. (Bailey & Love)
Q5. What are complications of inguinal hernia repair?
A. Immediate: haematoma, wound infection. Early: urinary retention, chest infection. Late: recurrence, chronic groin pain, mesh migration/infection, testicular atrophy, hydrocele, injury to ilioinguinal nerve (numbness).
SHORT CASE 2 - VARICOSE VEINS WITH VENOUS ULCER
PATIENT DETAILS
- 37-year-old male, painter by profession
- Non-healing, painful ulcer of right lower limb for 6 months
- History of "swollen nerves" (tortuous dilated veins) and blackish discolouration of skin of lower 1/3rd of same limb
CLINICAL PHOTOGRAPH
The image shows:
- Medial aspect of right ankle/gaiter area - classic location for venous ulcer
- Lipodermatosclerosis - thickened, indurated, pigmented (haemosiderin deposition) skin in lower 1/3rd
- Hyperpigmentation of gaiter area (inverted champagne bottle leg)
- Tortuous dilated veins (varicosities) visible on leg
DIAGNOSIS
Primary Varicose Veins with Venous (Stasis) Ulcer - CEAP Class C6
CEAP Classification (Bailey & Love):
- C0: No visible venous disease
- C1: Telangiectasia/reticular veins
- C2: Varicose veins
- C3: Oedema
- C4: Skin changes (pigmentation, lipodermatosclerosis)
- C5: Healed ulcer
- C6: Active venous ulcer ← this patient
INVESTIGATIONS
- Duplex Doppler USG - confirms venous reflux; identifies incompetent perforators; assesses deep vein patency (rule out DVT)
- Trendelenburg test - locates sapheno-femoral junction (SFJ) incompetence
- Perthe's test - excludes deep vein thrombosis/obstruction
- ABI - rule out arterial component before compression therapy (ABI must be >0.8)
- Wound swab C&S
MANAGEMENT
Ulcer Care:
- Four-layer compression bandaging - mainstay of treatment; reduces venous hypertension; heals 70-80% ulcers
- Elevation of limb at rest
- Wound debridement + antiseptic dressings (silver-impregnated, alginate)
- Skin grafting for large chronic ulcers
Varicose Vein Treatment:
- High saphenous ligation + stripping (Trendelenburg operation) - ligation of SFJ + stripping of long saphenous vein
- Endovenous laser ablation (EVLA) / Radiofrequency ablation (RFA) - preferred in modern practice
- Foam sclerotherapy - injection of sclerosant (sodium tetradecyl sulphate) for smaller veins
- Subfascial endoscopic perforator surgery (SEPS) - for incompetent perforators near ulcer
VIVA QUESTIONS
Q1. What is the pathophysiology of venous ulcer?
A. Incompetent valves in superficial, perforating, or deep veins → venous reflux → venous hypertension in capillaries → fibrin deposition around capillaries (fibrin cuff theory) → reduced oxygen delivery to tissues → skin necrosis → ulceration. Also: leukocyte trapping → local inflammation.
Q2. Why is the gaiter area (medial malleolus) the classic site for venous ulcers?
A. The perforating veins connecting deep to superficial systems are most numerous and largest at the medial malleolus (Cockett's perforators). Incompetence here causes maximum venous hypertension at this specific region, predisposing to ulceration.
Q3. What differentiates venous from arterial ulcer? (See Long Case 4 comparison table above.)
Q4. What is lipodermatosclerosis?
A. Chronic inflammatory change of the subcutaneous fat and dermis in the gaiter area secondary to chronic venous hypertension → haemosiderin pigmentation, thickening, induration, and tapering of the limb above the ankle ("inverted champagne bottle" or "inverted bowling pin" leg).
SHORT CASE 5 - THYROGLOSSAL CYST
PATIENT DETAILS
- 15-year-old female
- Spherical cystic swelling in front of neck of size 1.5×1.5 cm
- Moves with protrusion of tongue AND moves with deglutition
CLINICAL PHOTOGRAPHS
- Two images showing a midline anterior neck swelling in a young female
- Smooth, well-defined, cystic swelling in the midline at the level of hyoid bone/just below
- No skin changes; skin freely mobile over swelling
DIAGNOSIS
Thyroglossal Duct Cyst
Pathognomonic feature: Movement with tongue protrusion (due to attachment of tract to the foramen caecum at base of tongue via hyoid bone)
INVESTIGATIONS
- USG Neck - confirms cystic nature; confirms presence of normal thyroid inferiorly (mandatory before surgery - 1-2% of cases, the cyst IS the only functioning thyroid)
- Thyroid function tests - rule out hypothyroidism
- FNAC - if any doubt about diagnosis or firm component (rule out ectopic thyroid carcinoma - ~1% risk, papillary carcinoma most common)
- CT scan - for large cysts or retrosternal extension
MANAGEMENT
Sistrunk's Operation - gold standard (Sabiston Textbook of Surgery)
Steps:
- Transverse incision over the cyst
- Complete excision of cyst
- Excision of central portion of hyoid bone (body)
- Excision of entire tract from hyoid to foramen caecum (base of tongue)
- Rationale: Removing the hyoid body and complete tract prevents recurrence (recurrence if only cyst excised = 30-40%; with Sistrunk = <5%)
VIVA QUESTIONS
Q1. What is the embryological basis of thyroglossal cyst?
A. The thyroid gland develops from the floor of the pharynx (foramen caecum) at the junction of anterior 2/3 and posterior 1/3 of tongue. It descends to its final position via the thyroglossal duct, which passes through (not around) the body of hyoid bone. The duct normally obliterates by week 10. Persistence of any part → thyroglossal cyst anywhere along the tract (base of tongue to thyroid). (Sabiston Textbook of Surgery)
Q2. Why does a thyroglossal cyst move with tongue protrusion?
A. The persistent tract is attached to the foramen caecum at the base of the tongue. When the tongue protrudes, the hyoid bone elevates and the tongue base moves → the tract (and attached cyst) is pulled upward. This is pathognomonic and distinguishes it from other midline neck swellings.
Q3. What are the common sites of thyroglossal cyst?
A. 75% occur at or below the hyoid bone (subhyoid - most common); 20% at hyoid level; 5% suprahyoid/intralingual. Can also be retrosternal rarely.
Q4. Why must you confirm the presence of a normal thyroid before surgery?
A. In 1-2% of cases, the thyroglossal cyst contains the only functioning thyroid tissue (ectopic thyroid). Removing it without confirming a normal orthotopic thyroid would render the patient permanently hypothyroid. USG must confirm normal thyroid before Sistrunk's operation.
Q5. What is the most common malignancy arising in a thyroglossal cyst?
A. Papillary thyroid carcinoma (~1% of thyroglossal cysts). Treatment: Sistrunk's operation + total thyroidectomy + radioiodine ablation.
SHORT CASE 10 - SOLITARY THYROID NODULE (GOITRE)
PATIENT DETAILS
- 32-year-old male, Tumkur
- Swelling in front of neck for 6 years, gradually increasing
- No pressure symptoms (no dysphagia, dyspnoea, stridor)
- No hypo/hyperthyroidism symptoms
EXAMINATION
- Single smooth-surfaced swelling; lower border visible
- Left carotid pulse felt (pushing the carotid laterally)
- Trachea shifted to the RIGHT - mass effect from left-sided/large right nodule
- Moves with deglutition (attached to thyroid gland)
- No other neck swellings
- No lymphadenopathy documented
DIAGNOSIS
Solitary Nodule Thyroid (Solitary Thyroid Nodule - STN)
Most likely: Benign colloid/adenomatous nodule OR follicular adenoma
Must exclude: Carcinoma thyroid (40% risk of malignancy if radiation history (Schwartz's Surgery))
INVESTIGATIONS
Goal: Determine if benign or malignant.
| Investigation | Purpose |
|---|
| TFTs (TSH, T3, T4) | Assess thyroid function; if suppressed TSH → hot/autonomous nodule |
| USG Neck (Thyroid) | Size, echogenicity, vascularity, margins, calcification, lymph nodes; TIRADS scoring |
| Technetium-99m scan | Hot (benign, autonomous) vs. Cold (10-20% risk malignancy) nodule |
| FNAC (USG-guided) | Key investigation - Bethesda classification guides management |
| Chest X-ray | Tracheal deviation confirmation; retrosternal extension |
| CT neck | For large/retrosternal/compressive goitres (Pemberton's sign) |
| Serum calcitonin | If medullary thyroid carcinoma suspected |
| Vocal cord assessment (laryngoscopy) | Pre-operative baseline; rule out RLN involvement |
TIRADS (Thyroid Imaging Reporting and Data System):
- TIRADS 1-2: Benign
- TIRADS 3: Probably benign; follow-up
- TIRADS 4-5: Suspicious/malignant; FNAC mandatory
Bethesda Classification (FNAC):
- I: Non-diagnostic (repeat)
- II: Benign (follow-up)
- III: Atypia of undetermined significance (repeat/molecular testing)
- IV: Follicular neoplasm (surgery)
- V: Suspicious for malignancy (surgery)
- VI: Malignant (surgery)
MANAGEMENT
Conservative (Bethesda II, TIRADS 1-2):
- Regular USG follow-up every 6-12 months
- Levothyroxine suppression (controversial; not routinely recommended)
Surgical (Indications):
- FNAC Bethesda IV-VI (suspicious/malignant)
- Tracheal deviation / compressive symptoms (as in this patient)
- Size >4 cm
- Rapid growth
- Cosmetically unacceptable
Surgery:
- Hemithyroidectomy (Lobectomy + isthmusectomy) - for indeterminate FNAC (Bethesda III/IV) or benign-appearing large nodule; allows definitive histology
- Total thyroidectomy - if FNAC malignant, bilateral nodules, family history, or frozen section confirms malignancy intraoperatively
- Frozen section - if FNAC inconclusive; extends to total thyroidectomy if malignancy confirmed
VIVA QUESTIONS
Q1. What features of a thyroid nodule raise suspicion for malignancy?
A.
- Hard consistency, fixed, irregular
- Rapid growth
- Hoarseness (RLN invasion)
- Dysphagia
- Palpable cervical lymphadenopathy
- History of neck irradiation
- Family history of thyroid cancer or MEN
- Male sex (higher risk in males)
- Cold nodule on scan
- TIRADS 4-5 on USG
Q2. What is Pemberton's sign?
A. Raising both arms above the head causes engorgement of neck veins, facial flushing, and stridor in patients with retrosternal goitre - due to thoracic inlet obstruction. (Schwartz's Principles of Surgery)
Q3. What are the types of thyroid carcinoma in order of frequency?
A.
- Papillary (~80%) - best prognosis; psammoma bodies; RET/PTC mutation; lymph node spread
- Follicular (~10%) - haematogenous spread (bone, lung); worse prognosis than papillary
- Medullary (~5%) - from parafollicular C-cells; elevated calcitonin; associated with MEN2
- Anaplastic (~1-2%) - worst prognosis; elderly; rapidly fatal
Q4. What is the management of a "cold nodule" on thyroid scan?
A. A cold (non-uptaking) nodule has 10-20% malignancy risk (vs. hot nodule ~1% malignancy). It requires USG-guided FNAC for cytological assessment → Bethesda classification → management as above.
Q5. What structures are at risk in thyroid surgery?
A.
- Recurrent laryngeal nerve (RLN) - runs in tracheoesophageal groove; unilateral injury = hoarseness; bilateral = stridor/respiratory distress
- Parathyroid glands (4 in number) - devascularisation → hypocalcaemia; tetany (Chvostek's/Trousseau's signs)
- External branch of superior laryngeal nerve - injury → loss of high-pitched phonation (singer's nerve)
- Superior/inferior thyroid vessels
- Thoracic duct (left side)
References:
- Bailey & Love's Short Practice of Surgery 28e (Varicose veins CEAP, Inguinal hernia, Hernia repairs)
- Sabiston Textbook of Surgery (Thyroglossal duct cyst, Breast cancer)
- Schwartz's Principles of Surgery 11e (Solitary thyroid nodule, Breast cancer)
- Current Surgical Therapy 14e (Inguinal hernia repair, PVD)
- Tintinalli's Emergency Medicine (ABI, peripheral arterial disease)
- Fitzpatrick's Dermatology (ABI approach diagram)