Fibromatoses are benign fibroblastic proliferation, which forms infiltrating tumor-like mass. Their histologic features cannot reflect the biologic behavior; local recurrence and aggressive infiltration to the adjacent tissue make fibromatoses intermediate tumor, between benign and malignant. Infantile fibromatosis consists of desmoid-type tumor and lipofibromatosis, and mainly affects children under age of 10. While desmoid-type tumor is characterized by elongated mature fibroblastic proliferation, the fibroblasts in lipofibromatosis look more primitive and accompany adipocytes. Here, we report a case of infantile fibromatosis of 4 month old boy involving the tongue.

• 강경림(서울대학교 치의학대학원 구강병리학교실) | Kyung Rim Kang
• 신의정(서울대학교 치의학대학원 구강병리학교실) | Wui Jung Shin
• 윤혜정(서울대학교 치의학대학원 구강병리학교실) | Hye Jung Yoon
• 이재일(서울대학교 치의학대학원 구강병리학교실) | Jae Il Lee
• 홍삼표(서울대학교 치의학대학원 구강병리학교실) | Sam Pyo Hong
• 홍성두(서울대학교 치의학대학원 구강병리학교실) | Seong Doo Hong Correspondence