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tubercle
(too´bәr-kәl)
a nodule or small eminence, especially one on a bone, for attachment of a tendon; see also tuber and tuberosity. Called also tuberculum.
the characteristic lesion of tuberculosis, a small round gray translucent granulomatous lesion, usually with central caseation. It is made up of modified macrophages resembling epithelial cells, surrounded by a rim of mononuclear cells, principally lymphocytes, sometimes with a center of multinucleated giant cells.
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