, pl. maculae albidae gray-white or white, rounded or irregularly shaped, slightly opaque patches or spots that are sometimes observed postmortem in the epicardium, especially in middle-aged or older persons; they result from fibrous thickening, and sometimes hyalinization, of the epicardium; similar lesions may also occur in the visceral layer of the peritoneum. SYN: macula lactea, macula tendinea, tache blanche, tache laiteuse (2), tendinous spot, white spot.