1Senology Department, Université libre de Bruxelles, Erasme Hospital, Route de Lennik 808 1070 Anderlecht, Belgium.
Radiol Case Rep
We present a unique case of a male patient with a history of gynecomastia, who sought medical evaluation due to the discovery of a palpable left breast mass. Mammography revealed a spiculated mass in the upper quadrant of the left breast at 10-o'clock, and subsequent ultrasound and MRI confirmed its presence. Ultrasound-guided biopsy identified the mass as desmoid fibromatosis. This case highlights the diagnostic challenge posed by desmoid fibromatosis, especially in men, as it can mimic breast cancer both clinically and radiologically. Desmoid fibromatosis, although locally invasive, does not metastasize and necessitates extensive resection due to a high recurrence rate.