MacCallum, William George

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MacCallum,

William George, U.S. pathologist, 1874-1944.

MacCallum patch - found in deep layers of the endocardium in patients with rheumatic fever.

MacCallum plaque - irregular thickness usually found in the left atrium in patients with rheumatic fever.

References in periodicals archive ?

Further features can include dilatation of the left atrial chamber and raised map-like plaques (MacCallum patch) along the atrial endocardium due to mitral regurgitation.