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Updated: Aug 24, 2026

Left Atrial Stenosis Induced Pulmonary Venous Arterialization and Group 2 Pulmonary Hypertension in Rat
Published on: November 18, 2018
A rare case of left ventricular outflow obstruction
Insights
A rare giant blood cyst on the mitral valve caused severe obstruction in a patient. Noninvasive imaging was crucial for diagnosis, confirmed by histology.
Area of Science:
- Cardiovascular Medicine
- Pathology
Background:
- Left ventricular outflow tract (LVOT) obstruction can arise from various cardiac masses.
- Mitral valve masses are uncommon causes of significant hemodynamic compromise.
Observation:
- A patient presented with a mass on the anterior mitral valve leaflet.
- This mass led to severe obstruction of the left ventricular outflow tract.
Findings:
- Noninvasive imaging modalities were instrumental in diagnosing the condition.
- Histopathological examination revealed the mass to be an exceptionally rare giant blood cyst of the mitral valve.
Implications:
- This case highlights the importance of advanced noninvasive imaging in diagnosing rare cardiac pathologies.
- Understanding the nature of mitral valve cysts is crucial for appropriate management and surgical planning.
Abstract:
We report a patient with a mass originating from the anterior mitral valve leaflet causing severe left ventricular outflow tract obstruction. Noninvasive imaging provided the best diagnostic tools for diagnosis. Histological findings showed a very rare giant blood cyst of the mitral valve.
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