Pulmonary edema due to extreme left atrial compression

Area of Science:

• Cardiology
• Pulmonology
• Oncology

Background:

• Pulmonary edema frequently accompanies valvular heart disease and ventricular dysfunction.
• Left atrial dysfunction, caused by thrombus, myxoma, or cor triatriatum, can also manifest as pulmonary edema.

Observation:

• A patient presented with intractable pulmonary edema.
• The cause was identified as obliteration of the left atrial cavity by an extrinsically compressing lung tumor.

Findings:

• Extrinsic compression of the left atrium impaired its filling.
• This led to elevated pulmonary venous pressure and subsequent pulmonary edema.

Implications:

• This case highlights extrinsically compressing tumors as a rare cause of pulmonary edema.
• It underscores the importance of considering non-cardiac masses in the differential diagnosis of pulmonary edema.