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Sternomastoid Tumour of Infancy and Congenital Muscular Torticollis 253

Key Summary Points
1. Sternomastoid tumour is usually associated with congenital 5. With early diagnosis and treatment, more than 90% of
muscular torticollis. the cases resolve with an adequately supervised passive
stretching exercise programme.
2. All children with sternomastoid tumour should be thoroughly
examined for associated conditions, such as torticollis, facial 6. Surgery is indicated in late presentation (>1 year), persistent
and cranial asymmetry, and hip dysplasia. limitation of neck rotation with head tilt, and progressive facial
asymmetry.
3. The degree of limitation of rotation of the neck towards the
affected side should be assessed. Congenital muscular 7. Follow-up should continue until the tumour resolves and neck
torticollis is a clinical diagnosis that does not require other rotation normalises.
investigations.
4. Differentials should be considered and investigated in the
absence of sternomastoid mass or nonresolving torticollis with
nonoperative treatment.

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