Leiomyosarcoma of the male breast: Case report

Primary sarcoma in man is very rare and knowledge about this tumor is limited with very few cases published in the literature.

A 65-year-old man operated on 20 years ago for a left breast tumor with a skin graft at the tumor site (no documentation or pathology report). He consulted for a mass in the left breast, bleeding on contact, associated with nodules in the right breast that looked suspicious. On breast ultrasound, a tissue formation in the lower medial quadrant of the left breast with irregular contours, measuring 42 × 53mm with the presence of several suspicious tissue formations in the right breast, the largest measuring 2 × 2cm.Surgical removal of the left mass with a right mastectomy with pathology report of breast leiomyosarcoma with healthy surgical borders followed by radiotherapy for local control.

Leiomyosarcoma is an extremely rare tumor in the breast and usually originates from the blood vessels, myoepithelium, or nipple musculature, as in our case. Breast sarcomas represent less than 1% of all malignant neoplasms of the breast. Their incidence in women is much higher than in men.

Primary breast sarcomas are rare tumors that originate from the mesenchymal tissue of the breast and represent less than 1% of all malignant neoplasms of the breast. Their diagnosis is confirmed by biopsy with immunohistochemical and only surgery can guarantee cure. Radiotherapy is recommended for local control after surgery.