Acute retrocollis associated with medullary arteriovenous malformation

Abstract

Abnormal neck posture is not rare in pediatric patients. In infancy, congenital causes, such as congenital muscular torticollis, predominate.1 However, various pathologies of the cervical musculoskeletal system or the central nervous system are implicated in acquired torticollis. We report a patient who presented with retrocollis as a sign of a medullary arteriovenous malformation (AVM).