Inflammatory Pseudotumor

http://radiographics.rsna.org/content/23/3/719.full

Lakshmana Das Narla, MD ; Beverley Newman, MD ; Stephanie S. Spottswood, MD ; Shireesha Narla, MD ; Rajasekhar Kolli, MD

1 From the Department of Radiology, Medical College of Virginia VCU Health System, Main Hospital 3rd Fl, 1250 E Marshall St, Richmond, VA 23298 (L.D.N., S.S.S.); Department of Radiology, Children’s Hospital of Pittsburgh, Pa (B.N.); Department of Primary Care Physicians, McGuire Veterans Hospital of Richmond, Va (S.N.); and Department of Surgery, Long Island Jewish Hospital, New Hyde Park, NY (R.K.). Presented as an education exhibit at the 2001 RSNA scientific assembly. Received April 1, 2002; revision requested May 13 and received December 10; accepted December 12.

Inflammatory pseudotumor is a quasineoplastic lesion that most commonly involves the lung and the orbit, but it has been reported to occur in nearly every site in the body. The pathogenesis, natural history, clinical presentation, imaging findings, and treatment options for inflammatory pseudotumor in the lung, heart, gastrointestinal tract, adrenal gland, iliopsoas muscle, orbit, and central nervous system are discussed. Because inflammatory pseudotumors mimic malignant tumors both clinically and radiologically, the radiologist should be familiar with this entity and help avoid unnecessary radical surgery when possible.