Intraoral Soft Tissue Fibrosarcoma in a Four-Year-Old Child: An Unusual Case Report.

Fibrosarcoma is a rare soft tissue tumor of connective tissue origin that includes about 0.05% of all the malignancies in the head and neck region of which almost 23% is seen in the oral cavity. This paper describes a rare case of 4-year-old boy who presented with swelling on the right side of face diagnosed as soft tissue fibrosarcoma of the intraoral region. The histopathological and immunohistochemistry confirmed the diagnosis by the presence of spindle-shaped cells arranged in fascicles with mitotic figures and cellular proliferation reproducing fibroblasts. The patient was successfully treated with combination of chemotherapy and surgery with a good clinical outcome. This case report is presented to highlight the rarity of fibrosarcoma in orofacial region of children which requires special attention of pediatric dentist and should be considered as differential diagnose of soft tissue mass in orofacial region of children. Clinical and histopathological features must be correlated with immunohistochemistry in the final diagnosis in fibrosarcoma.