Impingement

Dr. Thompson,

It is actually prefemoral fat pad- not uncommonly involved in patellofem impingement / friction patients- with about 60% frequency.

It was 1st reported in my 2010 review article.

See attached images how it can get friction edema like in your case- adventitial bursa, pvns and bodies. Mostly, lateral aspect of the prefem fat pad is involved in impingements.

Avneesh Chhabra, M.D. M.B.A.

Professor Radiology & Orthopedic Surgery

Chief, Division of Musculoskeletal Radiology

UT Southwestern Medical Center, Dallas, Tx

5373 Harry Hines Blvd.

Dallas, Tx-75390-9178

Office: 214-648-2122

avneesh.chhabra

http://www.utsouthwestern.edu

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