Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
Negative-pressure pulmonary Hemorrhaging Due to Severe Obstructive Sleep Apnea
Kenya KuramotoMasashi MatsuyamaMizu NonakaTakahiro TakeishiHisayuki OshimaSosuke MatsumuraMasayuki NakajimaChio SakaiToshihiro ShiozawaTakumi KiwamotoYuko TsukaharaNorio TakayashikiRyoko OgawaYuko MorishimaMasayuki NoguchiNobuyuki Hizawa
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JOURNAL OPEN ACCESS

2021 Volume 60 Issue 14 Pages 2291-2296

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Abstract

A 24-year-old man with a history of bloody sputum for 6 months was referred to our hospital with suspected alveolar hemorrhaging due to vasculitis. Chest computed tomography showed ground-glass opacities in both lungs, and an examination of his bronchoalveolar lavage fluid showed alveolar hemorrhaging. However, no evidence of vasculitis was found, and subsequent polysomnographic testing confirmed that he had severe obstructive sleep apnea (OSA). Since the alveolar hemorrhaging improved after the initiation of continuous positive airway pressure treatment, the diagnosis was negative-pressure alveolar hemorrhaging due to severe OSA.

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© 2021 by The Japanese Society of Internal Medicine
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