Division of Oral and Maxillofacial Surgery, Department of Oral and Maxillofacial Reconstructive Surgery, School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, Iwate, 020-8505, Japan.
Division of Anatomical and Cellular Pathology, Department of Pathology, School of Dentistry, Iwate Medical University, 2-1-1 Nishitokuta, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan.
World J Surg Oncol. 2017 Nov 13;15(1):201. doi: 10.1186/s12957-017-1270-9.
Osteochondroma is a benign bone tumor that can occur in both the mesenchymal and craniofacial bones. However, craniofacial osteochondromas are extremely rare, because the mandible develops by intramembranous ossification rather than by endochondral ossification.
The most common site of craniofacial osteochondroma is the mandibular condyle, followed by the coronoid process. In the present study, we have described the case of a 64-year-old Japanese man with an unusually large osteochondroma located on the internal angle of the mandibular body. Clinical, radiological, pathological, and treatment-related aspects are discussed with respect to the tumor origins.
In the medical literature, there have been few reports of large osteochondromas of the mandibular angle with no clinical symptoms.
骨软骨瘤是一种良性骨肿瘤，可发生在间充质和颅面骨中。然而，颅面骨软骨瘤极为罕见，因为下颌骨通过膜内成骨而不是软骨内成骨发育。
颅面骨软骨瘤最常见的部位是下颌骨的髁突，其次是喙突。在本研究中，我们描述了一例 64 岁日本男性的罕见病例，其位于下颌体内部角的骨软骨瘤体积巨大。讨论了肿瘤起源与临床、影像学、病理学和治疗相关的方面。
在医学文献中，很少有报道描述无临床症状的大型下颌角骨软骨瘤。
