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Ultrastruct Pathol. 1993 May-Aug;17(3-4):459-62.

Abdominal neuroendocrine neoplasm with misplaced exocytosis.

Author information

1
Department of Pathology, University of South Alabama, Mobile 36617.

Abstract

A 22-year-old man presented with epigastric fullness and tenderness. A 14-cm mass that was adherent to the sigmoid colon was removed surgically. The tumor exhibited ultrastructural evidence of neuroendocrine differentiation but defied precise classification. The tumor exhibited misplaced exocytosis, a finding not previously described in neuroendocrine tumors other than prolactin cell adenomas.

PMID:
8266604
[Indexed for MEDLINE]

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