J Korean Soc Radiol.  2018 Dec;79(6):354-358. 10.3348/jksr.2018.79.6.354.

Intramuscular Epidermal Cyst of the Buttock: A Case Report

• Yim Y
• Kim NR
• Moon SG

• KMID: 2427385
• DOI: http://doi.org/10.3348/jksr.2018.79.6.354

Abstract

Epidermal cysts are common benign subcutaneous lesions that occur in or on the skin. It is not very difficult to diagnose subcutaneous epidermal cysts using ultrasound imaging because they exhibit typical sonographic features. However, the differential diagnosis can be confused when epidermal cysts are found in unusual sites. The authors report a case involving a 4-year-old girl who presented with an intramuscular epidermal cyst in the gluteus maximus muscle. Magnetic resonance imaging revealed characteristic internal features of the epidermal cyst, despite being in an uncommon site, and was very useful in the preoperative diagnosis.

MeSH Terms

Buttocks*
Child, Preschool
Diagnosis
Diagnosis, Differential
Epidermal Cyst*
Female
Humans
Magnetic Resonance Imaging
Skin
Ultrasonography

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