Which side is the most common site of occurrence of fibromatosis colli?
The right sternocleidomastoid muscle is affected in 73% of cases.
What are the possible complications of fibromatosis colli?
Plagiocephaly, facial asymmetry, scoliosis, permanent loss of neck mobility.
What must all fibromatosis colli patients be screened for?
Developmental dysplasia of the hip and bony abnormalities of the forefoot.
Dynamic ultrasound confirmed unilateral, left sternocleidomastoid muscle belly enlargement. There is a fusiform shape, with no discrete mass lesion, increased focal echogenicity corresponding to the enlarged muscle belly, and no calcifications or hematoma present. The contralateral asymptomatic right sternocleidomastoid muscle is normal.
Reactive age-appropriate anterior cervical chain benign lymphadenopathy is also present.