J Korean Soc Radiol.  2020 Sep;81(5):1121-1133. 10.3348/jksr.2019.0199.

Overlooked and Challenging Encounters–Inflammatory Pseudotumors in the Abdomen and Pelvis: A Pictorial Essay

  • 1Department of Radiology, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea
  • 2Department of Radiology, Yeungnam University Hospital, College of Medicine, Yeungnam University, Daegu, Korea
  • 3Department of Radiology, Gimhaebokum Hospital, Gimhae, Korea


Inflammatory pseudotumors (IPTs) are uncommon, mass-forming lesions, predominantly involving the lung and orbit. Although the incidence of IPTs is rare in the abdomen and pelvis, they can be encountered as enhancing, soft-tissue lesions, mimicking malignancy or fibrosclerosing disease. Generally, they exhibit a wide range of nonspecific imaging features in various organs. Preoperative imaging diagnosis of IPTs in appropriate clinical settings may help determine proper patient management. In this article, we review radiologic findings of IPTs in the abdominopelvic cavity, including the liver, spleen, kidney, gastrointestinal tract, mesentery, pelvis, and retroperitoneum.


Inflammatory Pseudotumor; Abdomen; Pelvis; Computed Tomography; X-Ray; Magnetic Resonance Imaging
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