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Low-grade appendiceal mucinous neoplasm with puffer ball-like appearance: A case report
Mihoko Yamazaki1, Shinichi Cho2, Moto Nakaya2
1Department of Radiology, Saitama Sekishinkai Hospital, 2 Chome-37-20, Irumagawa, Sayama, Saitama 350-1305, Japan.
Abstract:
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.
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