A case of dyspnea: respiratory failure due to pulmonary arteriovenous malformation

  • Lucio Brugioni | brugioni.lucio@aou.mo.it Medicina Interna ed Area Critica, AOU Policlinico di Modena, Italy.
  • Chiara Catena University of Modena and Reggio Emilia, Italy.
  • Eugenio Ferraro University of Modena and Reggio Emilia, Italy.
  • Serena Scarabottini University of Modena and Reggio Emilia, Italy.
  • Francesca Mori University of Modena and Reggio Emilia, Italy.
  • Enrico Clini Department of Pneumology, Policlinico of Modena, Italy.


Pulmonary arteriovenous malformations (PAVMs) are abnormal communications between pulmonary arteries and veins. The clinical features suggestive of PAVMs are stigmata of right-to-left shunting (dyspnea, hypoxemia, cyanosis, cerebral embolism, brain abscess), unexplained hemoptysis, or hemothorax.
We present a case of young man presented to Emergency Department complaining dyspnea, polycythemia and persistent hypoxemia. Angio-CT scan of the chest detected multiple PAVMs.
PAVMs are uncommon in the general population, but they are an important consideration in the differential diagnosis of common pulmonary problems, including hypoxemia, pulmonary nodules, and hemoptysis



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Case Reports
pulmonary arteriovenous malformation, right-to-left shunt, dyspnea, hypoxemia, embolotherapy
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How to Cite
Brugioni, L., Catena, C., Ferraro, E., Scarabottini, S., Mori, F., & Clini, E. (2019). A case of dyspnea: respiratory failure due to pulmonary arteriovenous malformation. Italian Journal of Medicine, 13(4), 244-246. https://doi.org/10.4081/itjm.2019.1195

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