A peripheral osteoma of the mandibular coronoid process

IF 0.4 Q4 DENTISTRY, ORAL SURGERY & MEDICINE
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引用次数: 0

Abstract

Osteoma is a benign neoplasm composed of mature bone and is limited almost exclusively to the craniofacial bones. Osteoma of the coronoid process is very rare. We encountered a 35-year-old woman who noticed right cheek pain when opening her mouth. She was referred to our hospital in August 2021 for the further evaluation and treatment of radio-opacity of the right mandibular coronoid process. She had no relevant medical history, family history, or history of oral parafunction. Initial extra- and intraoral clinical examinations revealed no definite swelling and no limitation of joint motion. However, the maximum unassisted mouth opening was 37 mm, and she experienced pain in the medial mandibular ramus at mouth opening. After this discomfort she had been pain-free for 15 years. Panoramic radiography revealed mushroom-shaped radiopacity on the right-side mandibular coronoid process which had increased in size compared to 15 years earlier. Computed tomography showed a bone-like lesion on the right mandibular coronoid process measuring 28 × 18 × 15 mm, with lesion-shaped right skull base bone resorption. The clinical diagnosis was a benign osseous neoplasm of the coronoid process (right side). The lesion was excised intraorally under general anesthesia; the pathological diagnosis was compact bone osteoma. The postoperative course was uneventful. The patient was then able to open her mouth to 40 mm and her right cheek pain at mouth-opening had disappeared. There has been no recurrence as of 2 years post-surgery.

下颌骨冠状突周围骨瘤
骨瘤是一种由成熟骨骼组成的良性肿瘤,几乎只局限于颅面部骨骼。冠状突骨瘤非常罕见。我们遇到过一名 35 岁的女性,她发现张嘴时右脸颊疼痛。她于 2021 年 8 月被转诊至我院,接受右下颌骨冠状突放射性骨瘤的进一步评估和治疗。她没有相关病史、家族史或口腔功能障碍史。最初的口外和口内临床检查显示没有明确的肿胀,关节活动也没有受限。但是,她在无辅助情况下的最大张口幅度为 37 毫米,而且在张口时下颌骨内侧嵴会感到疼痛。在这次不适之后,她已经无痛 15 年了。全景放射线检查显示,右侧下颌骨冠状突呈蘑菇状放射性肿胀,与 15 年前相比体积增大。计算机断层扫描显示,右侧下颌骨冠状突上有一个骨样病变,大小为 28 × 18 × 15 毫米,病变处右侧颅底骨吸收。临床诊断为冠状突(右侧)良性骨肿瘤。在全身麻醉下,对病灶进行了口内切除;病理诊断为紧密骨骨瘤。术后恢复顺利。之后,患者可以将嘴巴张开 40 毫米,张口时的右脸颊疼痛也消失了。术后两年没有复发。
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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来源期刊
CiteScore
0.80
自引率
0.00%
发文量
129
审稿时长
83 days
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