Fibromatous colli - sternocleidomastoid

Case contributed by Dr Rupesh Namdev


Infant with lump in the neck.

Patient Data

Age: 2 months
Gender: Male


Fusiform focal thickening of sternocleidomastoid muscle, maintaining the fibrillar structure.

Case Discussion

Fibromatosis colli is a rare form of infantile fibromatosis that occurs within the sternocleidomastoid muscle.  It is a benign cause for a 'lump' in the neck in the newborn and infants.  It is classically associated with a traumatic or assisted delivery. 

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Case information

rID: 26705
Published: 3rd Jan 2014
Last edited: 14th Aug 2019
System: Head & Neck
Inclusion in quiz mode: Included

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