Intra-Abdominal Desmoid Tumor: A Case Report

Abstract

A 35 years old female patient, with no particular pathological history, presented for three months with an abdominal mass that was progressively increasing in volume, painful without vomiting or transit disorder. The clinical examination revealed a mass in the right iliac fossa, painful to palpation, round and mobile without inflammatory signs, measuring 50*40mm, with no palpable enlarged lymph nodes. The abdominal CT scan showed an anterior abdominal mass lateralized to the right side, localized in the right internal oblique muscle, measuring 73*54*86 mm, associated with right external iliac lymph nodes measuring up to 8 mm with a low peritoneal effusion of the pouch of Douglas. A biopsy was performed and the histological and immunohistochemical study was positive for desmoid tumor. The patient was treated by wide tumor resection, and put on medical treatment: Tamoxifen-based hormone therapy (20mg/day) with regular monitoring by abdominal CT scan every six months. The evolution was favorable, with no recurrence after 23 months of follow up.