| hard tubercle |
a noncaseating tubercle, the characteristic lesion of sarcoidosis, composed of discrete aggregations of large, pale-staining, epithelioid cells intermingled with histiocytes, lymphocytes, and Langhans' giant cells, sometimes surrounded by a narrow band of lymphocytes; when necrosis is present, it is minimal. ...
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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