Abdominal (Mesenteric) Fibromatosis

**Semantic type:** Neoplastic Process

**Definition:** An insidious poorly circumscribed neoplasm arising from the deep soft tissues of the abdomen. It is characterized by the presence of elongated spindle-shaped fibroblasts, collagenous stroma formation, and an infiltrative growth pattern.

**Synonyms:** - Abdominal Desmoid - Abdominal Desmoid Tumor - Abdominal Fibromatosis - Abdominal desmoid - Abdominal fibromatosis - Intraabdominal Desmoid - Intraabdominal Desmoid Tumor - Intraabdominal Fibromatosis - Mesenteric Desmoid - Mesenteric Desmoid Tumor - Mesenteric Fibromatosis - Mesenteric fibromatosis - Peritoneal Desmoid Fibromatosis