What is malignant pectus excavatum?
Top image: The heart is completely shifted to the left side of the chest cavity, which is a case of common pectus excavatum; Bottom image: The heart is located at the bottom of the indentation, not shifted to the left, and is clearly compressed, which is a case of malignant pectus excavatum. Pectus excavatum is a common chest wall deformity that usually causes no significant symptoms if the indentation is mild. This is because the heart shifts toward the left side of the ch