title: Hirayama disease: imaging profile of three cases emphasizing the role of flexion MRI.
abstract: We report three cases of Hirayama disease, cervical flexion myelopathy presenting as unilateral or bilateral asymmetric muscular atrophy of forearm and hand involving C7 - T1 myotomes in young males. MRI revealed asymmetric cord atrophy, altered signal intensity of cord, posterior dural detachment and enlarged posterior epidural space with multiple flow voids. This article emphasizes the role of Flexion MRI in diagnosing Hirayama disease.
authors.affiliation: Associate Professor, Department of Radiodiagnosis, Mahatma Gandhi Medical College & Research Institute , Pillaiyarkuppam, Pondicherry, India .
authors.forename: Radha
authors.initials: R
authors.lastname: Sarawagi
authors.affiliation: Post Graduate Trainee, Department of Radiodiagnosis, Mahatma Gandhi Medical College & Research Institute , Pillaiyarkuppam, Pondicherry, India .
authors.forename: Sathya
authors.initials: S
authors.lastname: Narayanan
authors.affiliation: Professor & Head of Department, Department of Radiodiagnosis, Mahatma Gandhi Medical College & Research Institute , Pillaiyarkuppam, Pondicherry, India .
authors.forename: Prakash Manikka
authors.initials: PM
authors.lastname: Lakshmanan
authors.affiliation: Associate Professor, Department of Radiodiagnosis, Mahatma Gandhi Medical College & Research Institute , Pillaiyarkuppam, Pondicherry, India .
authors.forename: Sunitha Vellathussery
authors.initials: SV
authors.lastname: Chakkalakkoombil
keywords: Cord atrophy; Dural detachment; Flexion MRI; Hirayama disease