title: [Juxtapapillary gangliocytic paraganglioma of the duodenum].
abstract: A juxtapapillary duodenal polyp (measuring 1.5 x 1.0 x 1.2 cm) was removed endoscopically in a 57-year-old man who had had recurrent intestinal bleedings. Histological examination revealed a typical duodenal gangliocytic paraganglioma with carcinoid and paraganglioma-like components, as well as neuroid portions with ganglion cells. Various neuroendocrine markers (neuron-specific enolase, chromogranin, protein-gene product 9.5) were demonstrated immunohistochemically. Tests for pancreatic polypeptide, substance P, enkephalin, cholecystokinin, glucagon and S-100 proteins, were all positive.
authors.affiliation: Institut für Pathologie, Universität Bonn.
authors.forename: V
authors.initials: V
authors.lastname: Grouls
authors.forename: U
authors.initials: U
authors.lastname: Stein
authors.forename: J
authors.initials: J
authors.lastname: Vogel
mesh_terms: D014670:Ampulla of Vater; D004379:Duodenal Neoplasms / Q000175:diagnosis / Q000473:pathology*; D004386:Duodenum / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D007413:Intestinal Mucosa / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010235:Paraganglioma / Q000175:diagnosis / Q000473:pathology*
vernacular_title: Juxtapapilläres gangliozytisches Paragangliom des Duodenums.