Juvenile Fibromatosis: Report of a Rare Case

Abstract

Fibromatosis is a rare benign tumor arising from the myofibroblast. It is a locally aggressive tumor with a high rate of recurrence but no malignant potential. Fibromatosis can occur anywhere in the body. It is rare in the head‑and‑neck region and even rarer in children. We report a case occurring in the neck of a child. A 7‑year‑old boy presented with progressive left‑sided, posterior neck swelling of 4 years and 3 years history of the loss of ability to vocalize. Imaging studies revealed a mass at the base of the skull and posterior neck on the left, with the preserved surrounding bone. The patient had a complete excision of the mass and histology confirmed juvenile fibromatosis. Juvenile fibromatosis of the head‑and‑neck region is a rare benign tumor of childhood. Tissue biopsy confirms the diagnosis. The recurrence rate is high following wide local excision.