Abstract
Anterior abdominal wall fibromatosis is a benign soft tissue tumor that is rare, but fast-growing with minimal chances of malignant change. We report a young female with a large abdominal swelling which on evaluation was provisionally diagnosed as anterior abdominal wall fibromatosis on imaging and confirmed by histopathology. She was successfully managed with resection of the tumor with a challenging abdominal wall reconstruction with bilateral inferiorly based external oblique muscle flap followed by a mesh repair. Though rare, these tumors are difficult to miss. The importance of this case report is that it describes the methods of multimodal management of a patient with surgery, reconstruction, and adjuvant therapy leading to better patient outcomes.