Lung Nodules and Hypoxemia: Any Association?

Area of Science:

• Cardiovascular Medicine
• Pulmonology
• Interventional Radiology

Background:

• Pulmonary arteriovenous malformations (PAVMs) involve abnormal connections between pulmonary arteries and veins.
• These malformations can lead to a right-to-left shunt, potentially causing systemic or pulmonary complications.
• PAVMs are infrequently encountered and often asymptomatic in the general population.

Observation:

• Two distinct cases of PAVMs were presented.
• The first patient exhibited unexplained dyspnea with lung-limited disease.
• The second patient presented with neurological signs indicative of systemic disease.

Findings:

• Both patients were diagnosed with arteriovenous malformations.
• Both individuals underwent successful embolization treatment for their PAVMs.
• Embolization proved to be an effective therapeutic intervention in these cases.

Implications:

• Embolization is a viable and successful treatment for pulmonary arteriovenous malformations.
• Early diagnosis and intervention can manage diverse clinical presentations of PAVMs.
• This highlights the importance of considering PAVMs in patients with unexplained dyspnea or neurological symptoms.