Benign fibromatosis of submandibular gland - Radiological and immunohistochemical characteristic features

Fibromatosis are benign well-differentiated fibroblastic proliferations that can occur anywhere in the body, but their occurrence in maxillofacial region is rare entity. Clinically, these tumors are intermediate grade neoplasms, present as firm nodular mass, are locally invasive, have high propensity of recurrence particularly in the head and neck area but do not metastasize. We report a rare case of 45-year-old female patient, who presented with the swelling in the left submandibular region which was confirmed as benign fibrous tumor, fibromatosis, histopathologically, and by immunohistochemical analysis.