Numano Yuki, Nomura Kazuhiro, Hemmi Tomotaka, Suzuki Jun, Kakuta Risako, Sugawara Mitsuru
Department of Otolaryngology, Tohoku Kosai Hospital, Head and Neck Surgery, Tohoku University Hospital, Miyagi, Japan.
Ann Maxillofac Surg. 2022 Jul-Dec;12(2):224-226. doi: 10.4103/ams.ams_287_21. Epub 2022 Dec 30.
Chronic maxillary atelectasis (CMA) is assumed to be caused by negative pressure in the maxillary sinus secondary to the obstruction of the ostiomeatal complex.
A 49-year-old female patient first presented to our hospital complaining of right nasal congestion, rhinorrhoea and cheek pain.
Computed tomography (CT) accidentally revealed the inward bowing of the left maxillary sinus, which is a typical sign of CMA or silent sinus syndrome despite the maxillary ostium being potent.
We did not consider any intervention for CMA because she had no symptoms related to it.
OUTCOMES AND TAKE-AWAY LESSONS: No progression was noted clinically or on CT at the 6-month follow-up. The pathogenesis of CMA in our patient was not explainable by the commonly accepted theory. Apparent hypertrophy of the left maxillary bone was confirmed on CT, thus osteitis with chronic rhinosinusitis might be the potential cause of CMA in the open maxillary sinus.
慢性上颌窦肺不张（CMA）被认为是由于窦口鼻道复合体阻塞继发上颌窦负压所致。
一名49岁女性患者首次到我院就诊，主诉右侧鼻塞、流涕和面颊疼痛。
计算机断层扫描（CT）意外发现左上颌窦向内凹陷，这是CMA或静息性窦综合征的典型表现，尽管上颌窦口通畅。
由于她没有与CMA相关的症状，我们未考虑对CMA进行任何干预。
6个月随访时，临床及CT检查均未发现病情进展。我们患者CMA的发病机制无法用公认的理论解释。CT证实左侧上颌骨明显肥大，因此慢性鼻窦炎伴骨炎可能是开放上颌窦中CMA的潜在原因。
