Key result
Calcification of the left atrium occurs most commonly in the subendocardial layer or less commonly in the bed of an organized thrombus.
Describes the anatomic locations and characteristics of left atrial calcification.
Enhances imaging recognition of left atrial calcification; leaves open its prognostic and therapeutic implications.
CALCIFICATION of the left atrium has been identified in two anatomic locations. The more common location is a shell-like calcification in the subendocardial layer of this chamber. Such deposition of calcium may be patchy in distribution throughout the atrial wall or may diffusely envelop the entire atrial endothelium.1 2 3 4 5 6 7 8 9 10 11 12 13 Less commonly the calcification actually lies in the bed of an organized thrombus that is densely adherent to the atrial endothelium.10 , 14 , 15 It is the small thrombi in the atrial appendage that most frequently calcify.10 Large thrombi rarely calcify. If they do, since they usually represent a many-layered clot, the calcification within them . . .
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Leonard et al. (1957) conducted a review in Calcification of the left atrium. Calcification of the left atrium occurs most commonly in the subendocardial layer or less commonly in the bed of an organized thrombus.
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