Exploring a rare entity: Myxoid liposarcoma on anterior abdominal wall

Myxoid liposarcoma is a soft tissue tumor. Out of all the malignant tumors, soft tissue tumors account for less than 1%, in which liposarcoma is the most common type of soft tissue tumor. The common site for liposarcoma is extremities and retroperitonium and on abdominal wall is exceptionally rare with only 22 cases reported so far. We report a case of 56 year old male patient presenting with anterior abdominal wall mass in left hypochondriac region of 6 months duration. There was no pain or discharge associated with it. On clinical examination, the mass was located on left upper quadrant of abdomen. Abdominal ultrasonography revealed well defined, hypoechoic, space occupying lesion. FNAC revealed scant fibroblast tissue. Trucut biopsy was advised. Radiological, clinical and cytological investigations were non- specific. An excision biopsy was performed and the sample was sent for histopathological examination. Gross examination revealed well circumscribed nodular myxoid mass, which was grey white in color. Microscopic examination revealed mesenchymal cells with myxoid rich stroma and cells show signet ring configuration. Pathological evaluation of surgical specimen is the gold standard for diagnosis. Complete excision with clear margin is the mainstay of treatment in view of its local recurrence. We report this case as myxoid liposarcomas are rarely seen in the clinic, here it has presented on an extremely unusual site, anterior abdominal wall.