Merkel cell carcinoma in pelvic lymph nodes after surgical staging for endometrial cancer: A case report and review of the literature.

International Journal of Surgery Case Reports
Nikolaos ThomakosAris Antsaklis

Abstract

Merkel cell carcinoma (MCC) is a rare malignant neuroendocrine tumor of the skin. We present a case of MCC in pelvic lymph nodes, revealed after surgical staging for endometrial cancer. A 54-year-old Caucasian woman presented to our department with a three-month history of postmenopausal bleeding. After proper preoperative evaluation, the patient underwent total abdominal hysterectomy, bilateral salpingo-ophorectomy and pelvic lymph node dissection. The pathology report confirmed the presence of a small, grade I, endometrioid adenocarcinoma and MCC in the pelvic lymph nodes. Primary site of the disease could not been retrieved. The tumor board decided adjuvant chemotherapy (carboplatin and etoposide) and close follow-up every 2months. Our patient is alive with no evidence of disease 12months after surgery. It is noteworthy that 19% of the patients with MCC had lymph node metastasis with no apparent primary lesion. The mechanism of this regression remains unclear, although a higher apoptotic activity has been observed in MCC than other skin tumors. In addition, other co-malignancies have also been linked to MCC patients. The explanation for the frequent occurrence of other primary neoplasms in patients with MCC is still unclear....Continue Reading

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Citations

Jul 7, 2017·Asian Journal of Endoscopic Surgery·Genki WatanabeMasashi Ueno
Jun 13, 2018·The American Journal of Dermatopathology·Andrew SirefBonnie Balzer

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