Low-grade appendiceal mucinous neoplasm with puffer ball-like appearance: A case report

Mihoko Yamazaki, MD; Shinichi Cho, MD; Moto Nakaya, MD; Kazufumi Kimura, MD; Hitoshi Ohno, MD; Kumi Aita, MD; Takeo Ogino, MD

Radiology Case Reports (Aug 2023)

Low-grade appendiceal mucinous neoplasm with puffer ball-like appearance: A case report

Mihoko Yamazaki, MD,
Shinichi Cho, MD,
Moto Nakaya, MD,
Kazufumi Kimura, MD,
Hitoshi Ohno, MD,
Kumi Aita, MD,
Takeo Ogino, MD

Affiliations

Mihoko Yamazaki, MD: Department of Radiology, Saitama Sekishinkai Hospital, 2 Chome-37-20, Irumagawa, Sayama, Saitama 350-1305, Japan; Corresponding author.
Shinichi Cho, MD: Department of Radiology, The University of Tokyo, Tokyo, Japan
Moto Nakaya, MD: Department of Radiology, The University of Tokyo, Tokyo, Japan
Kazufumi Kimura, MD: Department of Radiology, Saitama Sekishinkai Hospital, 2 Chome-37-20, Irumagawa, Sayama, Saitama 350-1305, Japan
Hitoshi Ohno, MD: Department of Radiology, Saitama Sekishinkai Hospital, 2 Chome-37-20, Irumagawa, Sayama, Saitama 350-1305, Japan
Kumi Aita, MD: Department of Pathology, Saitama Sekishinkai Hospital, Sayama, Saitama, Japan
Takeo Ogino, MD: Department of Surgery, Saitama Sekishinkai Hospital, Sayama, Saitama, Japan

Journal volume & issue: Vol. 18, no. 8
pp. 2790 – 2795

Abstract

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We report a case of ruptured low-grade appendiceal mucinous neoplasm with an impressive toy puffer ball-like appearance on magnetic resonance imaging. A 79-year-old woman with lower abdominal pain underwent computed tomography scanning, revealing a 6-cm mass in the right lower abdomen. T2-weighted images showed a radial low-signal structure in the central area of the mass, which was presumed to be fibrotic. Pathology confirmed ruptured low-grade appendiceal mucinous neoplasm. The rupture point was at the tip of the appendix, coinciding with the center of radial fibrosis. The unique morphology of the puffer ball-like appearance in this case may be a characteristic of low-grade appendiceal mucinous neoplasms.

Published in Radiology Case Reports

ISSN: 1930-0433 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Medicine: Medicine (General): Medical physics. Medical radiology. Nuclear medicine
Website: https://www.sciencedirect.com/journal/radiology-case-reports

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