Inflammatory myofibroblastic tumor

Inflammatory myofibroblastic tumors (IMT), also known as plasma cell granulomas, are rare neoplasms that have a diverse spectrum of biological behavior.


These tumors were previously referred to as inflammatory pseudotumor.


They can occur at any age and there is currently no recognized gender predilection.


Composed of spindle cells (key feature) with a variable infiltrate of inflammatory cells and fibrous tissue. They can occur at numerous sites:

Radiographic features

Imaging characteristics depend on the organ of involvement:

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