Cervical Mass in an Infant

Abstract

Fibromatosis colli is the most severe presentation of congenital muscular torticollis and a relatively rare cause of neck swelling in neonates and infants. We present a case of a 6 weeks old male infant that was admitted to the emergency department with a mass in the left lateral-cervical region. It was performed two soft tissue ultrasound that showed multiple adenopathy and after one week a new ultrasound was performed by a radiologist experienced in paediatric imaging that was suggestive of fibromatosis colli. Ultrasound is the diagnosis imaging modality of choice if there is any doubt in the diagnosis. It shows focal or diffuse enlargement of the sternocleidomastoid muscle in a fusiform configuration.