Arachnodactyly Heart
Cardiovascular lesions are known to be frequently associated with arachnodactyly. The most common pathologic finding is cystic medionecrosis, particularly affecting the aorta, which often gives rise to aneurysm formation. Congenital cardiac malformations have also been described in patients with arachnodactyly; the more common lesions encountered are coarctation of the aorta and septal defects. From his experience at the Gronigen Clinic, Netherlands, the author reports another, but less frequently observed, finding of myocardial hypertrophy and fibrosis, in the absence of other cardiovascular pathology; this lesion leads eventually to cardiac decompensation and demise. The term "arachnodactyly heart" is proposed to designate the primary myocardial pathology in this hereditary disease.