Recurrent Massive Hemothorax of Unknown Etiology in an 85-Year-Old Man

Yuki Okamatsu, Kazuya Tsubouchi, Takeshi Iwasaki, Tomoya Nakamura, Tadayuki Nakashima, Kousei Nakatsuru, Yuriko Takahata, Taishi Harada

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Case Presentation: An 85-year-old Japanese man, who was taking aspirin and edoxaban for previous myocardial infarction and atrial fibrillation, came to our hospital with a chief complaint of dyspnea for 3 weeks. Chest radiography showed a massive left pleural effusion (Fig 1A). Analysis of pleural fluid showed an elevated hematocrit level at 32.8% (blood hematocrit level, 32.0%), and he was diagnosed with hemothorax. However, he had neither coagulation disorder nor thrombocytopenia, and the pleural effusion was negative for atypical cells. These findings suggested that the antithrombotic and anticoagulant medications might have induced the hemothorax.

Original languageEnglish
Pages (from-to)e103-e110
Issue number2
Publication statusPublished - Feb 2022

All Science Journal Classification (ASJC) codes

  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine
  • Cardiology and Cardiovascular Medicine


Dive into the research topics of 'Recurrent Massive Hemothorax of Unknown Etiology in an 85-Year-Old Man'. Together they form a unique fingerprint.

Cite this