Torticollis in Neonates

Fibromatosis colli is the most frequent cause of congenital torticollis. Patients most commonly present in the first few weeks of life with a palpable mass of the sternocleidomastoid muscle. Other signs and symptoms include preferential head tilting and limited neck range of motion. US is the preferred initial imaging modality and reveals a fusiform or ellipsoid mass of the sternocleidomastoid muscle with clearly defined margins. Patients are treated with physical therapy aimed at stretching the affected muscle.