Morphologic demonstration of spontaneous and surgical closure of membranous ventricular septal defect.

This report demonstrates morphologic features of membranous ventricular septal defect that was closed spontaneously in one patient and operatively in the other.

Computed Tomographic and Morphologic Features of Syphilis of the Aorta.

This report describes certain computed tomographic and morphologic features of syphilitic aortitis in 2 patients in whom the process involved the entire thoracic aorta.