Cytological Features of Gangliocytic Paraganglioma Occurring in the Duodenum

Diagnostic Cytopathology 2026

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Authors: Momoka Kamio, Momoko Nakamura, Rimu Unehara, Mayu Ochi, Yukari Oue, Toshinori Mori, Chie Aoki, Mariko Kuroda, Satoko Mishima, Yukari Marubashi, Tomomi Shimizu, Yoshie Kaneko
+3 more Katsunari Ishida, Yoshimi Okazawa, Koji Arihiro
DOI: 10.1002/dc.70085
Cited by: 1
References: 6

Abstract

Gangliocytic paraganglioma (GP) is a rare tumor that predominantly occurs in the duodenum. We report a case of GP in a man in his 70s. The specimen obtained by EUS-FNAC revealed three cell populations: epithelioid cells, spindle cells, and ganglion-like cells, similar to those seen in NET and paraganglioma. While NET and GIST are considered differential diagnoses, the cytological features of GP have been reported, but the number of such reports is limited. In this paper, we report a case of GP with a comparison of cytological and histological findings.

Fields of Study & Subjects

Adrenal and Paraganglionic Tumors Hormonal Regulation and Hypertension Pituitary Gland Disorders and Treatments

Publication details

Journal / source
Diagnostic Cytopathology
Publisher
Wiley
Volume
54
Issue
5
Pages
E119–E126
Publication date
27 January 2026
Language
EN