Isolated membranous septal aneurysm.
D000792:Angiography; D006328:Cardiac Catheterization; D005260:Female; D006322:Heart Aneurysm / Q000000981:diagnostic imaging / Q000209:etiology*; D006345:Heart Septal Defects, Ventricular / Q000150:complications*; D006346:Heart Septum; D006801:Humans; D008875:Middle Aged