Mammary myofibroblastoma presenting as a palpable breast mass

We report the case of a male in his mid-80s who presented to the triple assessment breast clinic with a right-sided palpable breast mass. Mammography showed a well-circumscribed, oval, high-density mass without calcifications; targeted ultrasound demonstrated a circumscribed, parallel-oriented solid mass with mixed echogenicity and no internal vascularity. Core biopsy confirmed mammary myofibroblastoma, a rare benign spindle cell tumour, and the lesion was excised with clear margins. This case highlights the importance of triple assessment in all breast lesions, including in men, and while core biopsy usually establishes the diagnosis, surgical excision may still be required for confirmation.