Fibromatosis Colli: A case report

Abstract

Fibromatosis Colli also known as congenital torticollis is a rare cause of benign cervical pseudotumor in neonates, consisting of benign fibrous tissue proliferation within the sternocleidomastoid muscle, resulting in a fusiform enlargement. The cause of fibrosis is unknown; however it could be linked to trauma during pregnancy or at the time of birth, resulting in hemorrhage and, subsequently, fibrosis. Ultrasound plays a necessary role in confirming this diagnosis and follow-up. We Report a case of Fibromatosis colli in a four-week old newborn who was diagnosed using ultrasonography and treated with physiotherapy.

Fibromatosis Colli: A Thorough Description of Its MRI Characteristics and a Review of the Literature

“…However, another paper describes a T1-and T2-weighted appearance that matches our findings [12]. A final paper also described T2-weighted imaging in an isolated case, which matches our findings [9]. The only description of FC with contrast-enhanced MRI before our study was by Lowry et al, though they described an enhancing solid mass, which stands in opposition to the five cases that we described, where we found distinctive peripheral enhancement [4].…”

“…Due to the limited prevalence of this condition and the fact that the diagnosis is mainly obtained using ultrasound, the MRI characteristics have hitherto not been clearly defined, with only one previous article from 1998 in which only T1-weighted gradient recuperation imaging and T2-weighted characteristics were described [8]. A further article from 2022 also described the T2-weighted appearance of an isolated case, but once again, no contrast-enhanced sequences were performed [9]. One must note, however, that two other authors provided a T1-weighted imaging description three decades ago, in 1989 and 1994 [10,11].…”

Fibromatosis Colli: A Case Report

“…The WHO classification of soft tissue tumors classifies fibromatosis colli as a nonmalignant fibroblastic tumor. These tumors often occur in infants between two to four weeks; however, some cases have been reported where the tumors present in older infants and young adults [2,6]. The infants look normal at birth and develop a unilateral neck mass two to four weeks after birth.…”

“…Most cases affect the right side of the neck [1]. Despite its unknown etiology, it is generally believed that the pseudotumor results from an underlying muscle injury that can occur in utero due to poor fetal head positioning [2]. The tumor can also develop from birth-related trauma.…”