Undifferentiated Pleomorphic Sarcoma in the Mandibular Ramus and Post-Operative Recurrence: A Case Report
안재명, 장승일, 홍종락, 팽준영,
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안재명 ( Ahn Jae-Myung ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Oral and Maxillofacial Surgery
장승일 ( Jang Seung-Il ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Oral and Maxillofacial Surgery
홍종락 ( Hong Jong-Rak ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Oral and Maxillofacial Surgery
팽준영 ( Paeng Jun-Young ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Oral and Maxillofacial Surgery
Abstract
Undifferentiated pleomorphic sarcoma (UPS) in the mandible region is a rare malignant neoplasm. We encountered the case of a patient who had been diagnosed with deep benign fibrous histiocytoma (DBFH) prior to surgery, but the final biopsy revealed the presence of tumor tissues in the resected margin, which indicated a UPS. Therefore, radiotherapy was conducted post-operatively, but the tumor recurred approximately 3 years later and a second surgery was performed. The difference between the initial and final diagnoses was considered to be due to the characteristics of the tumor, as it involved both benign and malignant components. DBFH and UPS can occur in young women. DBFH can transform to a malignancy and UPS may also appear as a benign tumor during early biopsy. Hence, attention should be paid to diagnosis and treatment methods, and ongoing close observation is required.
키워드
Malignant fibrous histiocytoma; Undifferentiated pleomorphic sarcoma; Mandible
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