Primary large cell neuroendocrine carcinoma of the presacral region

A 7 cm diameter presacral tumour, not related to the intrapelvic organs, was found in a 51 year old woman. The needle biopsy showed a poorly differentiated large cell carcinoma. The patient died of urosepsis after chemotherapy. Postmortem examination revealed no other primary or metastatic tumour. Histological examination of the presacral tumour showed a large cell carcinoma with a trabecular pattern and strong immunoreactivity for neuroendocrine markers. The tumour was finally classified as a primary large cell neuroendocrine carcinoma of the presacral region.