Yoshiura K, Ban S, Hijiya T, Yuasa K, Miwa K, Ariji E, Tabata O, Araki K, Tanaka T, Yonetsu K
Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Kyushu University, Japan.
Dentomaxillofac Radiol. 1993 May;22(2):86-92. doi: 10.1259/dmfr.22.2.8375560.
Odontogenic maxillary sinusitis can be defined as sinusitis induced by a dental lesion. We examined the CT findings of 68 patients with maxillary sinusitis in order to differentiate between inflammation of sinus origin and inflammation of dental origin. Maxillary sinusitis was classified into four types according to clinical symptoms, history and conventional radiographic findings: type 1, simple sinusitis; type 2, odontogenic sinusitis; type 3, mixed sinusitis; type 4, slight sinus abnormality with a dental lesion. The relationship between the type of maxillary sinusitis and CT findings was analysed. Type 1 sinusitis exhibited severe pathological changes in both mucosa and bone which often extended into the nasal cavity and other paranasal sinuses. Type 2 sinusitis exhibited localized pathology on the unilateral antral floor. Type 3 sinusitis exhibited severe pathology characteristic of type 1 combined with type 2 sinusitis. Type 4 sinusitis could be differentiated by the CT findings into type 1 or type 2 sinusitis. The classification of sinusitis in this manner has implications for treatment planning, and CT should therefore be performed when conventional radiography does not provide sufficient information.
牙源性上颌窦炎可定义为由牙齿病变引起的鼻窦炎。我们检查了68例上颌窦炎患者的CT表现，以便区分鼻窦源性炎症和牙源性炎症。根据临床症状、病史和传统影像学表现，上颌窦炎分为四种类型：1型，单纯性鼻窦炎；2型，牙源性鼻窦炎；3型，混合性鼻窦炎；4型，伴有牙齿病变的轻度鼻窦异常。分析了上颌窦炎类型与CT表现之间的关系。1型鼻窦炎在黏膜和骨质上均表现出严重的病理改变，且常蔓延至鼻腔和其他鼻窦。2型鼻窦炎在单侧窦底表现为局限性病变。3型鼻窦炎表现出1型和2型鼻窦炎的严重病理特征。4型鼻窦炎可通过CT表现分为1型或2型鼻窦炎。以这种方式对鼻窦炎进行分类对治疗方案的制定具有重要意义，因此当传统放射学检查提供的信息不足时，应进行CT检查。
