gastric neuroendocrine carcinoma is a rare tumor which has a poor prognosis. herein, we present a 55-year-old woman who presented with complaints of recurrent vomiting, hematemesis and weight loss. endoscopic examination showed a large ulcerated mass in the antrum. microscopic evaluation of the specimen taken through biopsy was compatible with a small round cell tumor. however, definitive histo...

peripheral neuroepitbelioma (pn) is a rare highly malignant tumor, classified in the group of small round cell tumors. we report eight cases of pn, based on histologic appearance and immunohistochemical staining for neuron-specific enolase (nse). electron microscopy was also performed in three cases. the tumors exhibited rapid local growth, leading to limb amputation in five cases. histological...