Fibromatosis Colli: A Case Report

Khalid, Saifullah; Zaheer, Sufian; Wahab, Shagufta; Siddiqui, Mahmudur Rahman; Redhu, Navneet; Yusuf, Faraz

doi:10.5001/omj.2012.126

Cited by 20 publications

(29 citation statements)

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“…Although the exact etiology of FC is unknown, it is thought that FC is related to intrauterine or birth trauma resulting in ischemia and scar-like retraction of the SCM muscle. Typical examples of birth trauma leading to FC include difficult or prolonged labor, forceps assisted delivery, and breech presentation [2]. FC typically presents 2-4 weeks after birth as a nontender, palpable neck mass along the course of the SCM muscle.…”

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“…Plain films are usually normal, and are therefore not typically recommended for FC in the absence of other concerning symptoms. A CT scan is also not routinely recommended due to high cost and radiation exposure, but it will show iso-attenuating diffuse or focal unilateral enlargement of the SCM muscle and normal fascial planes [2]. If imaging is inconclusive, fine needle aspiration of the mass can be preformed.…”

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confidence: 99%

“…The remaining 10 % of patients will demonstrate refractory FC that persists beyond 1 year of age, requiring tenotomy surgery to release the SCM muscle. Recently, Botulinum toxin type A has also been used for patients with refractory FC, further decreasing the need for surgical correction [2]. Upon discharge, our patient was instructed to sleep with the spine in a neutral position, accomplished by using a rolled up towel to keep the patient from turning his head to the right during sleep.…”

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Fibromatosis colli spuriously presenting as a retropharyngeal mass on cervical spine radiographs

et al. 2015

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A 6-month-old boy with a 6-month history of torticollis presented to the Emergency Department (ED) from clinic because of an outpatient cervical spine X-ray study that showed abnormal pre-vertebral soft tissue swelling in the neck, suspicious for retropharyngeal abscess (Fig. 1). The patient was referred to the ED to obtain a computed tomography (CT scan) of the neck to evaluate for abscess versus retropharyngeal mass. The patient's mother reported a 6-month history of the patient holding his head mostly to the right side with considerable right-sided neck weakness. The mother also reported that the patient had not been reaching some developmental milestones due to his inability to lift his head or sit up without support. A neurologist had recently evaluated the patient, and an electroencephalogram (EEG) was normal. The patient had a history of GERD and asthma being treated with zantac and albuterol, respectively. Birth history was unremarkable, and the patient was up to date on his immunizations. While the history was positive for neck pain to the right, it was negative for fever, drooling, difficulty breathing, neck swelling, cough, and congestion. Physical examination revealed a playful, well-developed 6-month-old male infant in no apparent distress, with no masses or swelling of the neck. The neck had a full range of motion in all directions, yet patient favored the right. The patient would not lift his head off the bed, roll over, or sit up on his own. He was able to drink well without difficulty. The patient's vital signs, complete blood count, and complete metabolic panel were all unremarkable. Blood cultures were negative. Neck X-rays in neutral, flexion, and extension were obtained that showed persistent cervical pre-vertebral soft tissue thickening in all three positions. A CT scan of the neck with contrast demonstrated no retropharyngeal fluid collection or inflammatory process, and there was proper patency of the airway. Asymmetric thickening of the right sternocleidomastoid muscle, consistent with fibromatosis colli, was identified. These results, together with clinical examination, suggest the diagnosis of torticollis secondary to fibromatosis colli. The apparent pre-vertebral soft tissue thickening seen on earlier lateral X-rays was concluded to be from overlapping soft tissues secondary to torticollis.Fibromatosis colli (FC) is a rare benign tumor of the spindle cells of the sternocleidomastoid (SCM) muscle. This lesion is characterized by diffuse or focal enlargement of the SCM muscle by fibrous tissues. It is only seen in 0.4 % of infants, with 75 % of these cases involving the right SCM muscle. There is a slight male predominance [1]. Although the exact etiology of FC is unknown, it is thought that FC is related to intrauterine or birth trauma resulting in ischemia and scar-like retraction of the SCM muscle. Typical examples of birth trauma leading to FC include difficult or prolonged labor, forceps assisted delivery, and breech presentation [2]. FC typically presents 2-4 weeks after birth as a...

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Fibromatosis colli spuriously presenting as a retropharyngeal mass on cervical spine radiographs

et al. 2015

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“…Fibromatosis colli is a benign mass of the sternocleidomastoid muscle, consisting of fibroblastic proliferation. 5 It is also referred to as pseudotumour of the sternocleidomastoid muscle of infancy.…”

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confidence: 99%

Fibromatosis colli: An infant with neck swelling

Passarello¹,

Bhurawala²

2019

Aust J Gen Pract

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“…It is a congenital benign fibrous tumour developed from the sternocleidomastoid muscle 1. It manifests clinically by neck swelling and movement restriction ( torticollis ) 2. The exact aetiology is unknown, but it is attributed most of the time to ischaemia of the muscle after difficult or forceps delivery 2…”

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confidence: 99%