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Lee, Lee, Kang, Jeon, Park, and Yun: The Growth of an Extrapancreatic Solid Pseudopapillary Tumor from the Greater Omentum: A Case Report
Abdominal Radiology
Case Report

Journal of the Korean Society of Radiology 2010; 62(1): 67-71.

Published online: 31 January 2010

DOI: https://doi.org/10.3348/jksr.2010.62.1.67

The Growth of an Extrapancreatic Solid Pseudopapillary Tumor from the Greater Omentum: A Case Report

Yeum Sik Lee, M.D., Young Hwan Lee, M.D., Eu Gene Kang, M.D., Se Jeong Jeon, M.D., Seong Hoon Park, M.D., Ki Jung Yun, M.D.2

1Department of Radiology, Wonkwang University Hospital, Korea.

2Department of Pathology, Wonkwang University Hospital, Korea.

Address reprint requests to: Young Hwan Lee, M.D., Department of Radiology, Wonkwang University Hospital, 344-2 Shinyong-dong, Iksan, Jeonbuk 570-711, Korea. Tel. 82-63-859-1920, Fax. 82-63-851-4749, yjyh@wonkwang.ac.kr

Received 7 August 2009       Accepted 7 September 2009

Copyright © 2010 The Korean Society of Radiology

Abstract

A solid pseudopapillary tumor is an uncommon tumor of the pancreas that rarely metastasizes to other organs and usually shows good prognosis. An extrapancreatic tumor arising from a solid pseudopapillary tumor is very rare. We report a case of an atypical extrapancreatic solid pseudopapillary tumor that arose from the great omentum and disseminated to the peritoneum, and discuss the radiologic findings, including the CT, US, and MRI.

Keywords: Pancreatic Neoplasms, Omentum, Tomography, X-Ray Computed, Magnetic Resonance Imaging

Figures and Tables

Fig. 1

A 71-year-old man with peritoneal solid pseudopapillary tumor arose at the greater omentum.

A, B. Contrast enhanced axial CT images show a large complex mass at left upper quadrant, with mixed cystic and solid nature, and slight contrast enhancement of peripheral solid portion of the mass. There is no mass at pancreas. Multiple enhancing nodules at right subphrenic space with large amount of ascite.
C. Abdominal US shows a complex mass with hyperechoic solid portion and anechoic cystic portions at LUQ area.
D, E. MR images show that the mass has heterogeneous internal signal intensity, which indicates that the mass is more complex than suggested by the CT findings. Axial T1-weighted image (D) shows homogenous high signal intensity of the cystic mass and T2-weighted MR image (E) shows that the mass has fluid-fluid level, a finding consistent with hemorrhage.
F. Photograph of peritoneal mass at greater omentum in the laparoscopic biopsy.
G. Micro-photogram shows multifocal cystic changes (arrows) and scanty microvasculature in monomorphic solid pattern of tumor tissue (hematoxylin-eosin, original magnification ×100).
jksr-62-67-g001
Table 1

Review of Extrapancreatic Solid Pseudopapillary Tumors

jksr-62-67-i001

NED, no evidence of disease; DOD, died of disease

References

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