. Gynecology : . membrane. These cysts might properly be included under theterm perineal cysts, but, as they often result from a high denudation, theymay be situated well up in the vaginal canal, usually on one side. The contents of these cysts is a yellowish, semifluid, sebaceous material, andrepresents the activity of the included epithelium with retention of the secretion. 302 GYNECOLOGY They are usually about the size of a pea, though they may attain that of a hazel-nut. As a rule they are not painful, but sometimes cause a disagreeable irrita-tion at the introitus, which may be so severe
. Gynecology : . membrane. These cysts might properly be included under theterm perineal cysts, but, as they often result from a high denudation, theymay be situated well up in the vaginal canal, usually on one side. The contents of these cysts is a yellowish, semifluid, sebaceous material, andrepresents the activity of the included epithelium with retention of the secretion. 302 GYNECOLOGY They are usually about the size of a pea, though they may attain that of a hazel-nut. As a rule they are not painful, but sometimes cause a disagreeable irrita-tion at the introitus, which may be so severe as to cause dyspareunia or evenserious vaginismus. The treatment is removal by dissection if they give symp-toms. A special form of vaginal cyst and one which may cause serious surgicalcomplications is that which results from a blind secondary vagina. There aretwo types of defective development which may cause vaginal cysts of this one there exists a rudimentary uterus and a rudimentary blind vagina, the. Fig. 80.—Vaginal Cyst Due to Blind Supernumerary this case both horns and cervices are fully developed. There are two vaginas, but one hasno outlet. The blind vagina is converted into a cyst which becomes filled with products of men-struation from the corresponding uterine horn. canals of which do not communicate (Fig. 80). In these cases the cervix of therudimentary uterus becomes fused with that of the well-developed organ. Secre-tions accumulate in the blind vaginal sac and produce a cyst, as shown in thedrawing. In another type there exists a double uterus, double cervix, and doublevagina, but the vagina of one side is without an external opening. In this casethe blind vagina becomes filled with menstrual products in the form of a charac-teristic chocolate colored fluid. Sometimes the pressure may be so great as tobreak an opening through into the normal vagina. When this occurs the con-tents of the sac become infected and the blind vagina is converted
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