Musculoskeletal ImagingFibromatosis colli
a
benign, firm fibrous mass in the sternocleidomastoid muscle (
Fig.1). The nodule is usually seen in infants and disappears at 4 - 8 months. In some cases a torticollis may develop.
DR/RB
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Axial CT scan after administration of contrast material in a five week-old girl demonstrates enlargement of the right sternocleidomastoid muscle. There is no contrast enhancement. This muscle enlargement gradually reduced over the ensuing months.
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Fibromatosis colli, Fig.1 | |