Two cases of catamenial pneumothorax requiring resection of bulla in non-menstrual period

Takeshi Nishino, Shoji Sakiyama, Yukikiyo Kawakami, Mitsuteru Yoshida, Hiromitsu Takizawa, Kazuya Kondo
In: The Journal of the Japanese Association for Chest Surgery · 2013 · vol. 27(6) , pp. 693–698 · doi:10.2995/jacsurg.27.693 · W2334407923
article OA: bronze CC0 ⤵ 1 in-corpus citation
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⚙ AI-generated summary by claude@2026-06, 2026-06-12 ⓘ

Two patients with catamenial pneumothorax presenting with persistent air leaks underwent surgery during the non-menstrual period, revealing and resecting bullae in addition to diaphragmatic defect repair.

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Abstract

症例1は36歳，女性で月経時に右気胸を発症し受診した．月経随伴性気胸の診断で月経開始日に胸腔鏡手術を施行した．横隔膜に欠損孔を認め横隔膜縫縮術を施行した．術後ホルモン療法により無月経を維持していたが，6ヵ月後，気胸再発を認めた．持続的なエアーリークを認めたため再手術を施行した．初回手術時にはみられなかった右肺中葉のbullaを認め，bulla切除を行った．症例2は40歳，女性で月経時に右気胸を発症し受診した．持続的なエアーリークを認め胸腔鏡手術を施行した．横隔膜欠損孔と右肺中葉のbullaを認め，bulla切除，横隔膜部分切除を行った．2例とも組織学的に子宮内膜組織は証明されなかった．月経随伴性気胸の手術時期について明確な基準はないが，持続的なエアーリークを認めた場合はbulla, blebの出現，破裂の可能性があり，組織学的診断にこだわらず早急に手術治療に踏み切るべきである．

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