Malignant paraganglioma of retroperitoneum. Light, electron microscopic and ultrasonographic study.

Publication/Presentation Date

6-1-1981

Abstract

A malignant retroperitoneal nonchromaffin paraganglioma in a thirty-four-year-old man was studied by light and electron microscopy. Histologically, the tumor cells displayed a tendency to surround granular, eosinophilic intercellular material and to form nests and pseudo-acini. Ultrastructurally, the tumor was composed of moderately well-differentiated epithelial cells intermixed with sparse sustentacular cells. An organoid pattern, reminiscent of the functional anatomic unit of nonchromaffin paraganglia, was seen occasionally. Epithelial cells formed pseudo-acini around dilated microvillous processes. These morphologic features are consistent with the neurocrestal origin of paragangliomas. The patient died ten months after presentation despite an initial favorable response to irradiation.

Volume

17

Issue

6

First Page

611

Last Page

615

ISSN

0090-4295

Disciplines

Diagnosis | Medicine and Health Sciences | Other Analytical, Diagnostic and Therapeutic Techniques and Equipment | Radiology

PubMedID

7245459

Department(s)

Department of Radiology and Diagnostic Medical Imaging

Document Type

Article

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