Fat Necrosis in Axillary Lipoma after FNAC - A Case Report

ABSTRACT

Lipomas are benign soft tissue tumours having mature adipose tissue. These lesions are the most common soft tissue tumours, accounting for approximately 50 % of all soft tissue tumours.1 Lipomas are mostly located within the superficial soft tissues of the extremities, back, and neck. These lesions are asymptomatic, but due to the superficial location these lesions, they commonly present less than 5 cm in size.2 Lipomas deep to the superficial fascia also occur, but are rare. These lesions may be intramuscular or intermuscular and mostly occur in the lower extremity. Following accidental trauma fat necrosis can be seen, and the patient presents with pain at the site of lipoma with discoloration of skin. It can be confidently diagnosed on ultra-sonography, without further need of any investigation. Here, we are discussing USG, Doppler and Strain Elastography imaging findings in a middle-aged lady having fat necrosis within axillary lipoma. Lipoma are relatively common benign lesions and can arise from anywhere in the body. Fat necrosis is common following accidental trauma.