Fibromatosis colli

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[edit] Discussion of Fibromatosis colli

  • Fibromatosis colli is enlargement of the sternocleidomastoid muscle
  • Typically seen as a unilateral neck mass in a neonate, usually at about 2 weeks of age.
  • Right-sided in 75% of cases.
  • Patient history often includes a difficult delivery, and the mass may enlarge further after its discovery.

[edit] Imaging Findings for Fibromatosis colli

[edit] US

An ill-defined isoechoic or slightly hypoechoic mass is seen enlarging the sternocleidomastoid muscle.

[edit] CT

Isoattenuating enlargement of the sternocleidomastoid muscle with no definable mass

[edit] Images

Patient #1

[edit] See Also

[edit] External Links

Goldminer: Fibromatosis colli

[edit] References for Fibromatosis colli