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Here's a concise summary of all 8 pages covering Cholelithiasis, Cholecystitis, Cholecystectomy, and related conditions:

🫙 CHOLELITHIASIS (GALL STONES) - Key Points

Types of Gall Stones

Type	Key Feature
Cholesterol	>20% pure; mixed = 51-99% cholesterol
Pigment (Black)	Insoluble bilirubin + calcium; hard; hemolytic disorders (thalassemia, sickle cell)
Pigment (Brown)	Form in bile ducts; gram-negative bacteria (E.coli, Klebsiella); contain calcium bilirubinate
Mixed	<30% cholesterol

4F mnemonic for Cholesterol stones: Female, Forty (>40 yrs), Fatty (obese), Fertile (repeated pregnancies)

Consequences of Gall Stones

In gall bladder: >80% asymptomatic, biliary colic, acute/chronic cholecystitis, empyema, mucocele, perforation, gangrene, carcinoma
In bile duct: Obstructive jaundice, acute cholangitis, acute pancreatitis, cholangiocarcinoma
In intestine: Gall stone ileus

Asymptomatic Gall Stones - When to Operate (Exceptions)

Diabetic patients with hemolytic anemia
Gall stones in pediatric and young age group
Family history of gall bladder cancer
Acromegalic patients on somatostatin analogue therapy
Porcelain gall bladder (risk of carcinoma)
Incidentally found stones in good-condition patients (ASA I, II)
Patients undergoing bariatric surgery for morbid obesity

🔥 ACUTE CALCULOUS CHOLECYSTITIS

Caused by impaction of stone at gall bladder neck (Hartmann's pouch)
GB becomes hyperemic, edematous, tense, distended

Clinical Features:

RUQ pain radiating to tip of right shoulder
Tenderness in right hypochondrium
Anorexia, nausea, vomiting, fever
Mild jaundice may be present

Signs:

Murphy's Sign - inspiratory arrest during deep palpation of RUQ (inflamed GB touches parietal peritoneum)
Boas' Sign - hyperesthesia of skin below the right scapula (increased sensitivity)

Investigations:

Leukocytosis
USG - most useful; features: thick wall (>3mm), pericholecystic fluid, sonographic Murphy's sign
HIDA scan - non-filling of GB even after 24 hrs

Complications: Infection → empyema/necrosis; Obstruction → mucocele/pancreatitis; Perforation → peritonitis/abscess/fistula; Malignancy → porcelain gall bladder

Treatment of Acute Cholecystitis

Conservative (resuscitation) first:

Nil per oral (NPO)
Antibiotics (gram-negative coverage, e.g., cefuroxime)
IV fluids
Analgesics
Monitor vitals

Surgical timing debate:

Early cholecystectomy - within 2-3 days of illness (same admission)
Interval cholecystectomy - after 6-10 weeks

Switch to emergency cholecystectomy if:

Worsening despite conservative treatment
Gas in biliary tree, empyema, established peritonitis
Intestinal obstruction, gangrene/perforation

Percutaneous Cholecystostomy (PC): For critically ill patients who cannot tolerate surgery - catheter placed in GB lumen under imaging guidance to drain secretions.

🔪 CHOLECYSTECTOMY

Laparoscopic Cholecystectomy (GOLD STANDARD)

Pre-op: CBC, RFI, LFT, PT, ECG, antibiotics, DVT prophylaxis, Foley catheter

Technique:

Open method: Small incision below umbilicus → Hasson cannula → CO₂ insufflation
Closed method: Veress needle via sub-umbilical incision → CO₂ → 10mm trocar
4 ports: 10mm (umbilicus), 10mm (epigastrium), 5mm (mid-clavicular), 5mm (anterior axillary line)
Open Callot's triangle → identify cystic duct + cystic artery → clip and divide
GB dissected from liver bed → removed via epigastric port

Operative Hazards:

Bowel/great vessel injury
CBD, portal vein, hepatic artery damage
Conversion to open (3% elective; up to 20% for acute cholecystitis)
CO₂ retention
Accidental GB perforation with stone scattering

Contraindications for Laparoscopic:

Severe COPD or congestive heart failure (can't tolerate pneumoperitoneum)
Severe bleeding disorder
End-stage liver failure

Open Cholecystectomy

Kocher's (right subcostal) incision - most common
Placed 3-4 cm below and parallel to right costal margin, from xiphisternum to 9th costal cartilage
3 sponges placed around GB: 1st packs colon down, 2nd retracts stomach/duodenum, 3rd over visceral liver surface
Cystic duct ligated and divided; cystic artery ligated
If anatomy unclear → retrograde (fundus-first) cholecystectomy

Complications of Cholecystectomy:

Damage to hepatic duct or CBD
Damage to hepatic artery
Biliary leakage → biliary peritonitis
Missed stone in CBD or cystic duct
Wound complications (hematoma, infection, incisional hernia)

Post-Cholecystectomy Syndrome

Patients continue to have symptoms after surgery. Causes:

Retained/recurrent calculi in CBD
GB/cystic duct remnant
Bile duct strictures, iatrogenic injuries
Papillary stenosis
Biliary dyskinesia

ERCP must be performed if stone found in CBD.

OTHER GALL BLADDER CONDITIONS

Condition	Key Point
Chronic Cholecystitis	Pathological, not clinical diagnosis; fibrosis → contracted GB; treat with cholecystectomy
Empyema of GB	Pus in GB; stone at Hartmann's pouch; pain, fever, systemic toxicity, palpable tender mass; treat: cholecystectomy
Mucocele of GB	Mucus fills GB; stone in neck without infection; painless, soft, globular, non-tender swelling in RHC; USG + cholecystectomy
Acute Acalculous Cholecystitis	No stones; critically ill ICU patients (burns, sepsis, TPN, trauma); treatment: percutaneous cholecystostomy
Acute Emphysematous Cholecystitis	Air in GB lumen; gas-forming bacteria (Clostridium welchii); gangrene + perforation risk; urgent surgery; antibiotics: penicillin + aminoglycosides
Cholecystoses	Chronic inflammatory conditions without cholesterol deposits - includes cholesterosis, cholesterol polyposis, cholecystitis glandularis proliferans, diverticulitis

🔵 CHOLEDOCHOLITHIASIS (CBD STONES)

Primary stones: Form in bile ducts due to parasitic infection; usually brown pigment stones
Secondary stones: Migrate from GB into bile ducts; usually cholesterol stones

Courvoisier's Law: If CBD obstruction is due to a stone → GB is NOT palpable (repeated cholecystitis causes fibrosis/contraction). If obstruction is due to any other cause (carcinoma of head of pancreas, cholangiocarcinoma) → GB IS distended and palpable.

Diagnosis: USG → MRCP → ERCP; during attack: elevated bilirubin, alkaline phosphatase, total leucocyte count

Treatment:

If cholangitis: aggressive approach
ERCP - most stones removed this way
Choledochotomy - if ERCP fails; longitudinal incision on CBD; T-tube placed; cholangiogram after 7-10 days; if no obstruction, T-tube removed; if residual stones, T-tube left for 6 weeks, then stones removed via choledochoscopy/ERCP/PTC

Cholecystoses (Strawberry GB)

Cholesterosis = submucous aggregations of cholesterol crystals; looks like strawberry
Cholesterol polyposis = cholesterol-laden mucosal projections; USG diagnosis; operate if >1cm or size changes
Cholecystitis glandularis proliferans = granulomatous thickening + hyperplasia
Adenomatous polyp = benign; malignant potential if >1cm, sessile, age >50; cholecystectomy if symptomatic or high-risk

Exam Tips to Remember:

Murphy's sign = acute cholecystitis

Courvoisier's law = palpable GB NOT due to stones

Gold standard for cholecystectomy = laparoscopic

Kocher's incision = open cholecystectomy

Callot's triangle = key landmark in laparoscopic cholecystectomy

4F's = risk factors for cholesterol stones

HIDA scan = non-filling of GB in acute cholecystitis

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