hard sore


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Related to hard sore: granuloma inguinale, hard chancre

chan·cre

(shan'ker),
The primary lesion of syphilis, which begins at the site of cutaneous or mucosal infection after an interval of 10-30 days as a papule or area of infiltration, of dull red color, hard, and insensitive; the center usually becomes eroded or breaks down into an ulcer that heals slowly after 4-6 weeks. Finding Treponema pallidum on dark-field examination is diagnostic, except in oral ulcers, in which T. microdentium is normally present.
[Fr. indirectly from L. cancer]

hard sore

A syphilitic chancre; primary lesion of syphilis.
See also: sore