INCIDENTAL FINDING OF SOLITARY FIBROUS TUMOR OF MALE BREAST

Resumo

Myofibroblastoma (MFB), also known as a solitary fibrous tumor of the breast, is a rare sporadic benign tumor composed
of spindle-shaped tumor cells with myoblast differentiation. The most typical presentation is a painless unilateral mass
that is not connected to any surrounding structure and seldom surpasses 3 cm in size and should be evaluated by using
the triple-assessment approach. They have several subtypes, and a definite diagnosis can only be confirmed safely after
surgery using immunohistochemistry. Surgical excision serves an essential diagnostic and therapeutic purpose; MFB has
a favorable prognosis even when excision margins are positive, and local recurrence is extremely rare. The following is the
case of a 73-year-old man who presented with a dry cough. An MFB was discovered by chance during the investigative
workup and referred to our department. The patient’s presentation, imaging, and histological samples all supported the
diagnosis, and he had surgical resection without incident. We present the second case of an incidental finding of breast
MFB and urge clinicians to consider this differential diagnosis.