title: Intramuscular granular cell tumor: emphasizing the stripe sign.
abstract: We present a case of an intramuscular granular cell tumor in the thigh manifesting a 'stripe sign' on magnetic resonance imaging (MRI). This MR finding may correspond with the entrapped muscle fibers within the tumor, which demonstrated parallel arrangement on histopathologic examination. In addition, other disease entities characterized by the presence of this sign such as proliferative myositis, heterotopic ossification, and muscular sarcoidosis will be reviewed.
authors.affiliation: Department of Radiology, Ansan Hospital, University of Korea College of Medicine, 123, Jeokgeum-Ro, Danwon-Gu, Ansan-Si, Gyeonggi-Do, 425-707, Korea.
authors.forename: Eun Sil
authors.initials: ES
authors.lastname: Kim
authors.affiliation: Department of Radiology, Ansan Hospital, University of Korea College of Medicine, 123, Jeokgeum-Ro, Danwon-Gu, Ansan-Si, Gyeonggi-Do, 425-707, Korea. leesa7697@gmail.com.
authors.forename: Seun Ah
authors.initials: SA
authors.lastname: Lee
authors.affiliation: Department of Radiology, Ansan Hospital, University of Korea College of Medicine, 123, Jeokgeum-Ro, Danwon-Gu, Ansan-Si, Gyeonggi-Do, 425-707, Korea.
authors.forename: Baek Hyun
authors.initials: BH
authors.lastname: Kim
authors.affiliation: Department of Pathology, Anam Hospital, University of Korea College of Medicine, 73, Inchon-Ro, Seongbuk-Gu, Seoul, 126-1, Korea.
authors.forename: Chul Hwan
authors.initials: CH
authors.lastname: Kim
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D016586:Granular Cell Tumor / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D019042:Muscle Neoplasms / Q000473:pathology*; D018482:Muscle, Skeletal / Q000473:pathology*
keywords: Body extremity; Granular cell tumor; Magnetic resonance imaging; Stripe sign; Ultrasonography