-JAHR Georg Heinrich Gottlieb

Chancre of anus

 These chancres, of occuring as primary ulcers, always result from direct infection caused either by criminal intercourse, or by transmission of the virus from the sexual organs to the anus, which may easily occur in the case of females while in a recumbent position, when the matter flowing out of the pudendum touches the neighboring parts and this contact continues for a certain time. The longitudinal folds of the skin and mucous membrane of the anus generally impart to these chancres an oblong shape sometimes even the form of rhagades, with which they must not, however, be confounded. In most cases all doubt regarding their true character will be readily removed by their simple appearance, by their edges and base, in which respect they are altogether like other chancres, likewise by their size, which far exceeds that of simple rhagades, by the lesser pain during stool and by a careful investigation of all prior circumstances. They are seldom indurated, still less frequently phagedænic, but generally belong to the category of the so-called simple, soft chancre, and seldom leave distinctly perceptible cicatrices but may be complicated. with buboes. Such chancres may not only occur at the anus, but likewise in the rectum, in which case they are generally located not far from the sphincter ani. They have generally a rounded, irregular shape with edges that are more or less indented. As a general rule they are superficial; frequently, however, they involve the whole thickness of the mucous membrane and the subjacent cellular tissue. The accompanying pain is not very considerable, and the expulsion of fæces is not interfered with.

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