Journal of medical case reports · 2026
A complete pathological response to preoperative chemotherapy in a male patient with primary neuroendocrine breast cancer: a case report.
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Saifo Maher, Hussein Rahaf, Awad Eva, Al Chikh Youssef Mohamad, Alali Mousa
Аннотация
BACKGROUND: Primary neuroendocrine carcinoma (small-cell carcinoma) of the breast is a rare tumor; most cases are reported in women. Small-cell carcinoma is a type of neuroendocrine tumor characterized by high-grade, poorly differentiated, and aggressive behavior, which are common features regardless of the tumor's location. Here, we present a rare case of primary small-cell carcinoma of the breast in a male patient treated successfully with neoadjuvant chemotherapy followed by surgery.
CASE PRESENTATION: A 47-year-old Syrian man presented with a left breast mass. Further histopathological investigation revealed the diagnosis of high-grade small-cell carcinoma of the breast. Computed tomography imaging excluded other potential primary origins. The patient was treated with neoadjuvant chemotherapy (cisplatin and etoposide), followed by a modified radical mastectomy. After 18 months of diagnosis, the patient is under surveillance and doing well.
CONCLUSION: This report presents a rare case of male breast cancer with the uncommon histological diagnosis of small-cell carcinoma. It highlights a successful therapeutic approach in the absence of established treatment guidelines.
CASE PRESENTATION: A 47-year-old Syrian man presented with a left breast mass. Further histopathological investigation revealed the diagnosis of high-grade small-cell carcinoma of the breast. Computed tomography imaging excluded other potential primary origins. The patient was treated with neoadjuvant chemotherapy (cisplatin and etoposide), followed by a modified radical mastectomy. After 18 months of diagnosis, the patient is under surveillance and doing well.
CONCLUSION: This report presents a rare case of male breast cancer with the uncommon histological diagnosis of small-cell carcinoma. It highlights a successful therapeutic approach in the absence of established treatment guidelines.