Southi Jordan Tan, Estephan Thomas, Mitchelle Amer, Loneragan Robert
Department of Radiology, Concord Repatriation and General Hospital, Sydney, Australia.
Radiol Case Rep. 2024 Aug 6;19(10):4599-4603. doi: 10.1016/j.radcr.2024.07.029. eCollection 2024 Oct.
Intraosseous pneumatocysts are benign, gas-filled cystic structures of bone, typically asymptomatic and discovered incidentally on imaging. Their precise aetiology remains unclear, with the prevailing hypothesis being that they result from air accumulation within the bone due to a vacuum phenomenon, typically linked to an adjacent joint space or intervertebral disc. We report the case of a 37-year-old man with an incidental intraosseous pneumatocyst of the scapula, which was evaluated with CT and MRI. Using thin-slice CT, we are able to detect a tiny cortical breach suggestive of a communication between the lesion and the adjacent glenohumeral joint, lending support to the aforementioned aetiological hypothesis.
骨内气囊是一种良性的、充满气体的骨囊性结构，通常无症状，多在影像学检查时偶然发现。其确切病因尚不清楚，目前普遍的假说是，它们是由于真空现象导致空气在骨内积聚而形成的，通常与相邻的关节间隙或椎间盘有关。我们报告一例37岁男性肩胛骨偶然发现骨内气囊的病例，并对其进行了CT和MRI评估。通过薄层CT，我们能够检测到一个微小的皮质缺损，提示病变与相邻的盂肱关节之间存在连通，这支持了上述病因假说。
