Bilateral Tibialis Anterior Muscle Herniation

Kim, Jin Hye; Yang, Yoon Seok; Cho, Soo Ick; Chung, Bo Young; Kim, Hye One; Lee, Cheol Heon; Park, Chun Wook

Abstract

Muscle herniation is defined as a protrusion of a portion of a muscle through a defect of the muscle fascia. The anterior tibialis muscle is the most common site of herniation. This condition is a relatively common complaint among athletes, and it has been frequently reported in the orthopedic surgery literature, whereas it has received little attention in the dermatological literature. Clinical findings include the presence of soft, compressible nodules that vary in size depending on their position. Usually, herniation is asymptomatic and the main concern is cosmetic, but the patient may seek medical treatment because of pain. Here we report a 65-year-old woman who visited our hospital for an evaluation of two asymptomatic nodules that were on her lower legs, and was diagnosed with bilateral tibialis anterior muscle herniation.