Key result
Acute severe MR can present as unilateral pulmonary edema mimicking pneumonia from eccentric regurgitant jets.
Why the study?
Unilateral pulmonary oedema is a rare and often under-recognized form of acute cardiogenic pulmonary oedema that can mimic pneumonia and cause diagnostic delays.
Case Report (n=1)
Highlights the importance of recognizing acute severe mitral regurgitation as a potential cause of unilateral pulmonary oedema to avoid misdiagnosis as pneumonia and inappropriate management.
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Unilateral pulmonary oedema may signal eccentric mitral regurgitation; this case extends mechanistic reports but leaves broader recognition open.
Khalil et al. (2026) conducted a case report in Unilateral pulmonary oedema secondary to acute severe mitral regurgitation (n=1). Acute severe mitral regurgitation can present as unilateral pulmonary edema mimicking pneumonia, particularly when associated with eccentric regurgitant jets directed toward the pulmonary veins.
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