Lymphocele post groin lymph node dissection for melanoma

Case contributed by Chris O'Donnell
Diagnosis probable

Presentation

Left iliac fossa pain ? diverticulitis. History of groin lymph node dissection for melanoma 7 weeks ago.

Patient Data

Age: 80 years
Gender: Male

Large fluid collection intimately related to the left psoas muscle/iliac vessels extending down to the left groin where there are surgical clips. Note marked urinary bladder displacement. 

Case Discussion

Key to this case is the clinical history of lymph node dissection (not mentioned on the original radiology referral). Differential diagnosis includes a seroma, abscess or chronic hematoma.

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