Focal Periphyseal Edema (FOPE) Zone: A Possible Cause of Unexplained Knee Pain In Adolescents. A Case Report and Literature Review.

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Narong Budhraja, MD
Sopita Rungsunniwet, MD


Focal periphyseal edema (FOPE) is a recently described condition seen on Magnetic Resonance Imaging (MRI) scans of adolescent patients in relation to knee pain. Since its description in 2011, and proposal as a possible reason for adolescent knee pain, few case series have been published. We report a case of an adolescent male with activity-related knee pain and FOPE finding on MRI scan of his knee. On reviewing medical literature we found nine case series reported with regards to FOPE zone. We have reviewed the demographic and clinical characteristics of the reported cases. With this report we aim to bring more awareness about this condition amongst orthopedic surgeons.


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Budhraja, MD N, Rungsunniwet, MD S. Focal Periphyseal Edema (FOPE) Zone: A Possible Cause of Unexplained Knee Pain In Adolescents. A Case Report and Literature Review. BKK Med J [Internet]. 2021 Sep. 29 [cited 2023 Nov. 29];17(2):146. Available from:
Case Report


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