LAUSR

Granular cell tumors are rare benign soft tissue tumors [1]. Granular cell tumor was first described by Russian pathologist Abrissokoff as myeloblastoma [2]. Currently, it was proven to be of neural origin due to the advent of immunohistochemical techniques with positive expression of markers, such as S-100 and myelin basic protein [3–6]. Granular cell tumors have been mainly observed in the head and neck [7]. However, less frequently sites are the larynx, breast, female anogenital region, lung, skin, and gastrointestinal tract [3–8]. Granular cell tumors occurring in the superficial and deep soft tissues of the extremities are rare, especially those of intramuscular origin. In the literature, occurrence in the intramuscular origin has been reported as case reports and case series [1]. This study reports a rare case of granular cell tumor in the gracilis muscle. The patient provided consent after informing her that the case would be submitted for publication.