Gangliocytic paraganglioma of the duodenum: case report
Dante, S.; Viale, G.; Dalla Palma, P.
Tumori 73(4): 425-429
1987
ISSN/ISBN: 0300-8916 PMID: 2444023 Document Number: 286973
A case of gangliocytic paraganglioma of the second portion of the duodenal loop is presented. The tumor was polypoid and, histologically, composed of mature ganglion cells, spindle cells and epithelial-like cells. Immunocytochemical examination demonstrated the presence of neurofilament 200 K and S-100 protein only in the first two types of cells; all the cells were positive for neuron-specific enolase. The reaction for cytokeratin was negative in all neoplastic components. According to morphologic and immunocytochemical findings, we suggest a hamartomatous nature of this entity.