DOI: 10.36347/sasjm.2022.v08i07.004

Pages: 454-455

Definition: Fibromatosis colli is a congenital torticollis of muscular origin. It is secondary to a unilateral retraction of the sternocleidomastoid muscle, which appears enlarged and swollen on imaging. Radiological-Clinical Observation: It is a one month old infant who consults in the pediatric department for a cervical swelling lateralized to the right with a vicious neck attitude. Discussion: Fibromatosis colli is an infantile pseudotumor. Its incidence is approximately 0.4% of live births. Its exact etiology is still unknown. This condition is often unilateral. Ultrasound is the examination of choice for the exploration of this disease. In case of diagnostic doubt, a cytopunction may be indicated. The treatement is generally conservative and based on motor physiotherapy. Surgical treatment is sometimes necessary in case of persistence of the lesion. Spontaneous evolution can lead to an almost total cure by the age of 24 months in most cases. Conclusion: Fibromatosis colli is considered among the rare causes of cervical masses in infants and newborns. Imaging plays an important role in its diagnosis and post-treatment follow-up. Its treatment is often conservative and the evolution is favorable.