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Ultrasound Report Interpretation

Centre: Anil Diagnostic Centre Patient: Harshavardhan Date: 10 July 2026

What the Scan Shows

These are two high-resolution superficial ultrasound images taken with a linear probe (9L RS) at a shallow depth of ~3 cm. This type of probe is used for scanning structures close to the skin surface - lymph nodes, thyroid, soft tissue lumps, etc.

Key Findings

Top image - B-mode (greyscale) with measurements:
  • A small hypoechoic (dark) nodule/lesion is visible in the superficial soft tissue
  • Measured in two dimensions:
    • D1 = 0.72 cm (7.2 mm)
    • D2 = 0.70 cm (7.0 mm)
  • The lesion is nearly round (~7 mm in diameter)
  • There is prominent posterior acoustic shadowing - a dark band behind the lesion - which suggests the structure is dense (calcified, fibrous, or foreign material)
  • Borders appear somewhat ill-defined
Bottom image - Doppler evaluation:
  • A Doppler box is placed over the lesion to check blood flow
  • No color signal is seen inside the lesion - meaning it is avascular (no internal blood vessels feeding it)

What This Could Mean

PossibilityExplanation
Calcified lymph nodeA healed/scarred lymph node (e.g., after old TB or infection) - very common finding
Calcified granulomaScar tissue from an old infection (e.g., TB, fungal)
Calcified cystAn old cyst that has hardened over time
Foreign bodyIf there is any history of a prick/injury at that site
Benign fibrous noduleDense scar tissue
The avascular nature + acoustic shadowing + small round shape is most consistent with a benign, likely calcified structure - not suggestive of an active aggressive process.

What to Do Next

  1. Correlate with symptoms - Is there pain, tenderness, or a palpable lump at this site?
  2. Tell the doctor the location of the scan (neck, groin, armpit, etc.) - this matters a lot for interpretation
  3. A formal written report from the radiologist at Anil Diagnostic Centre should accompany these images - that report is the official interpretation
  4. If the doctor is concerned, FNAC (fine needle aspiration cytology) of the lesion can confirm the exact nature of the nodule
Important: These images show a small, likely benign calcified nodule. However, this interpretation is based only on the images visible here. A radiologist's written report and your treating doctor's clinical assessment are needed for a definitive diagnosis. Please share these with your physician.

It is an abdominal USG of adult male with umbilical discharge give the diagnosis and management

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Excellent - I now have all the information needed. Here is the full interpretation:

Diagnosis: Urachal Remnant / Urachal Sinus (most likely)

Context

The ultrasound shows a small hypoechoic (~7 mm) midline structure with posterior acoustic shadowing in the superficial tissue, located between the umbilicus and bladder in an adult male presenting with umbilical discharge. This clinical picture - adult male + umbilical discharge + a midline paraumbilical structure on ultrasound - is classic for a urachal anomaly, most likely an umbilical-urachal sinus or patent urachus.

What is the Urachus?

The urachus is an embryological tube connecting the fetal bladder to the umbilicus (allantois remnant). It normally obliterates before birth into the median umbilical ligament. Failure of obliteration leads to one of four anomalies:
Urachal anomalies diagram from Bailey & Love
(a) Normal obliterated urachus; (b) Patent urachus - full connection bladder to umbilicus; (c) Urachal cyst - mid-segment; (d) Urachal sinus - failure to obliterate near umbilicus; (e) Urachal diverticulum - failure near bladder)
AnomalyDescriptionPresentation
Patent urachusFull open tract: bladder to umbilicusClear urine leaking from umbilicus
Urachal sinusBlind-ending tract opening at umbilicusDischarge, infection at umbilicus
Urachal cystIsolated mid-segment cyst, no openingUsually asymptomatic; pain if infected
Urachal diverticulumBlind pouch at bladder endUTI, haematuria
Given umbilical discharge in this patient, the most likely diagnoses are a patent urachus (if discharge is urine-like/clear) or urachal sinus (if purulent/mucoid discharge).

Why the Acoustic Shadowing?

The strong posterior shadowing on ultrasound suggests the tract/remnant may be calcified or contain inspissated/infected debris - this is consistent with a chronically infected or calcified urachal remnant, which is common in adults who present late.

Investigations

  1. Ultrasound (already done) - confirms a midline supraumbilical structure
  2. MRI abdomen - gold standard in adolescents/adults; clearly delineates the entire urachal tract and its relation to the bladder
  3. CT abdomen - if MRI unavailable; useful to evaluate extent and rule out urachal carcinoma
  4. Sinogram/fistulogram - contrast injected into the sinus opening at the umbilicus to trace the tract
  5. Micturating cystourethrogram (MCU) - to detect any bladder communication (patent urachus)
  6. Urine analysis + culture - to detect UTI (common with patent urachus)
  7. Cystoscopy - if hematuria or UTI present, to exclude bladder involvement or urachal carcinoma

Management

Medical (temporary/adjunct)

  • Antibiotics if infection/discharge is purulent (cover gram-negatives + S. aureus, e.g., co-amoxiclav or based on culture)
  • Wound care of the umbilicus
  • Antibiotics alone will NOT cure the anomaly - surgical excision is definitive

Surgical (definitive - recommended for ALL cases)

Urachal anomalies carry a small but real risk of malignant transformation to adenocarcinoma (urachal carcinoma) with high mortality. Therefore, complete surgical excision is recommended for both symptomatic and asymptomatic cases. - Bailey and Love's Surgery, 28th Ed., p. 1517
Surgical principles:
  • Complete excision of the urachal remnant with a wide bladder cuff
  • Bladder closed in two layers
  • The umbilicus can be circumscribed and preserved for cosmesis
  • Approach options:
    • Laparoscopic (preferred) - minimally invasive, excellent visualisation
    • Robotic - increasingly used
    • Open - midline or infraumbilical incision for complex/infected cases
  • Cystoscopy + catheter insertion into the tract before surgery helps identify and trace the urachus intraoperatively

Post-operative

  • Histopathological examination of the excised specimen is mandatory to rule out urachal adenocarcinoma
  • Follow-up imaging if histology is suspicious

Key Points to Remember

  • Male sex + umbilical discharge in an adult = think urachal anomaly first
  • USG is the first-line investigation; MRI is the gold standard for full delineation in adults
  • Even asymptomatic urachal remnants should be excised due to adenocarcinoma risk
  • Laparoscopic excision with bladder cuff is the operation of choice
  • Always send the specimen for histopathology
Source: Bailey and Love's Short Practice of Surgery, 28th Edition, p. 1517 - Urachal Anomalies
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