Fibromatosis colli, an unusual neck mass: A case report

Abstract

Fibromatosis colli (FC) is a condition of benign fibrous tissue proliferation on one side of the sternocleidomastoid (SCM) muscle leading to focal or diffuse enlargement of the neck and is often clinically associated with torticollis. Here, we report a case of a 2-month-old infant who was healthy except for a bulky neck mass on the left side of the SCM muscle. The patient was diagnosed with FC using sonography, which is a favored imaging tool because it can differentiate FC from other causes of neck masses. Physiotherapy can significantly improve the majority of FC cases.

Keywords

• fibromatosis colli
• sternocleidomastoid muscle
• torticollis