Ball in the Wall: Mesenteric Fibromatosis—a Rare Case Report

Abstract

Introduction Mesenteric fibromatosis-desmoid tumor of mesentery is a rare benign soft tissue tumor of mesentery. On CT, it mimics gastrointestinal stromal tumor (GIST). Case Report A 44-year-old female with small intestinal mass, preoperatively diagnosed radiologically and pathologically as GIST. Conclusion Mesenteric fibromatosis is a rare tumor often mistaken for GIST. Histopathology and immunohistochemistry is the key as management of both the tumors differs.

Sporadic Mesenteric Fibromatosis with Colonic Entrapment Mimicking Gastrointestinal Stromal Tumor—A Rare Entity: Two Case Reports

“…Though the diagnosis of MF with infiltrative margins is rather easy, mesenteric fibromatosis with well-defined margins can be confused radiologically with gastrointestinal stromal tumor (GIST). 1,2 Histopathology confirmation is essential for a definitive diagnosis.…”

“…3 Those associated with FAP have APC gene mutation that leads to overexpression of nuclear β-catenin. 2 Mesenteric fibromatosis occurs in 9 to 18% of patients with FAP. 3 In patients with FAP, the lesions are smaller and multiple.…”