Magnetic Resonance Imaging Appearance of Erythema Nodosum: A Case Report.

Abstract

Erythema nodosum (EN) is the commonest inflammation of the subcutaneous fat tissue (panniculitis). Erythema nodosum (EN) requires an interdisciplinary approach and exclusion of all underlying causes. We present a case of an 18-year-old female with a history of recurrent streptococcal infections over the years, who developed pain and swelling in the left ankle. To evaluate the persistent ankle swelling, the physician ordered a magnetic resonance imaging (MRI) of the left lower extremity. The MRI appearance of EN has not been described in detail in the literature so far.