Gastrointestinal Stromal Tumor of the Duodenum: A Case Report

The report describes a malignant gastrointestinal stromal tumor occurring in the duodenum in a 71-year-old woman. The neoplasm showed both epithelioid and spindle cell patterns by light microscopy. The ultrastructural features were diagnostic of nerve sheath origin. The tumor had numerous wrapping p...

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Veröffentlicht in:	Ultrastructural pathology 1991, Vol.15 (4-5), p.503-507
Hauptverfasser:	Flinner, Robert L., Hammond, Elizabeth H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aged Cell Nucleus - chemistry Cell Nucleus - ultrastructure Diagnosis, Differential Duodenal Neoplasms - diagnosis Duodenal Neoplasms - pathology Duodenal Neoplasms - ultrastructure duodenum Duodenum - chemistry Duodenum - pathology Duodenum - ultrastructure Female gastrointestinal tract Humans Immunohistochemistry Microscopy, Electron neoplasms S100 Proteins - analysis stromal tumor Tomography, X-Ray Computed
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Zusammenfassung:	The report describes a malignant gastrointestinal stromal tumor occurring in the duodenum in a 71-year-old woman. The neoplasm showed both epithelioid and spindle cell patterns by light microscopy. The ultrastructural features were diagnostic of nerve sheath origin. The tumor had numerous wrapping processes joined by junctions and surrounded by axons. No features of smooth muscle differentiation were identified. Immunocyto-chemistry was inconclusive. The differential diagnosis of such neoplasms is discussed.
ISSN:	0191-3123 1521-0758
DOI:	10.3109/01913129109016256