Odontogenic myxofibroma arising in the mandibular angle of a child with long-term follow-up: A case report

Tumor discovery Pub Date : 2024-03-19 DOI:10.36922/td.2096
Momoko Yoshikawa, T. Karube, Hiroki Nagamine, W. Muraoka, Hideki Kizu, H. Kawana, T. Nakagawa, S. Asoda
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Abstract

Odontogenic myxofibroma of the jawbone is a rarity in children, and there are few reports of cases with long-term follow-up, which mainly describe the growth process of odontogenic myxofibroma. We herein report a case of odontogenic myxofibroma that arose in the mandibular angle of a pediatric patient with a long-term follow-up of more than 14 years. The patient, when he was 10-years-old, first approached us with a complaint of painless swelling in the right mandibular angle that was palpable and showed bone-like hardness. Computed tomography revealed an ill-defined bone defect measuring 20 mm in diameter with bone protrusion in the margin. A biopsy was performed to differentiate the mass from osteosarcoma, giving a preliminary diagnosis of odontogenic myxofibroma or chondromyxofibroma. Therefore, tumorectomy was performed under general anesthesia. We curetted the bone surrounding the tumor and filled defect with iliac cancellous bone. The final diagnosis was odontogenic myxofibroma. At present, 14 years after the surgery, the patient had experienced an uneventful post-operative course without recurrence.
一名儿童下颌角的牙源性肌纤维瘤及长期随访:病例报告
颌骨的牙源性肌纤维瘤在儿童中较为罕见,长期随访的病例报道很少,主要描述的是牙源性肌纤维瘤的生长过程。我们在此报告了一例发生在儿童患者下颌角的牙源性肌纤维瘤,该病例经过了超过 14 年的长期随访。患者 10 岁时首次就诊,主诉右下颌角出现无痛性肿胀,可触及并显示骨样硬度。计算机断层扫描显示,该处有一个直径为 20 毫米的界限不清的骨缺损,边缘有骨突起。为了将肿块与骨肉瘤区分开来,医生对肿块进行了活检,初步诊断为牙源性肌纤维瘤或软骨性肌纤维瘤。因此,在全身麻醉下进行了肿瘤切除术。我们刮除了肿瘤周围的骨头,并用髂骨松质骨填充了缺损。最终诊断为牙源性肌纤维瘤。目前,手术已过去 14 年,患者术后恢复顺利,没有复发。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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