UNUSUAL CASE OF MALE BREAST CANCER: A CLINICAL REPORT

A 56-year-old man started oncologic treatment in 2010 for right side breast cancer, having been submitted to radical mastectomy plus axillary emptying and concomitant adjuvant chemotherapy. Infusion of zoledronic acid was used to minimize the risk of bone metastases. In 2017, pulmonary and cerebral metastases were identified with concomitant persistent wound in the posterior edentulous residual border of the mandible. Expansion of a bone necrosis area in the jaw body was observed (right side; diagnostic hypothesis: bisphosphonate-induced osteonecrosis). Then, pharmacologic treatment was applied. Submandibular abscess (right side) with tongue projection and difficulty maintaining airway permeability were observed in 2019. Abscess drainage and complete removal of the necrotic bone fragment were performed. Histopathologic analysis of bone material and associated soft tissue indicated mouth squamous cell carcinoma. Oncologic treatment for pulmonary and cerebral metastases has not been modified by this new carcinoma, and the patient is being monitored.