Fibrosing inflammatory pseudotumor

Last revised by Rohit Sharma on 6 Feb 2022

Fibrosing inflammatory pseudotumors are an inflammatory process with histology showing a polymorphous infiltrate with plasma cells, lymphocytes and eosinophils as well as a significant reactive fibrovascular component.

They can occur at various sites of the body including: 

Fibrosing inflammatory pseudotumors may be seen as an infiltrative lesion with bone destruction.

  • T2: usually hypointense due to fibrous components 

As the name suggests, fibrosing inflammatory pseudotumor can sometimes mimic malignancy. 

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