Gynaecology for students and practitioners . e referred toagain in connection with the histogenesis of ovarian dermoids. It will thus be seen that a variety of tissues of ectodermal and meso-dermal origin occur in these tumours, and some of them deserve moreparticular mention. Skin only occurs in patches ; it resembles its normal prototype inconsisting of a cuticleresting upon a cutis vera, and in being furnishedwith hair-follicles and abinidant sebaceous glands {see Fig. 396),and occasionally with a few ill-developed, spiral sweat-glands. Fattytissue is often found beneath it, and sometimes s
Gynaecology for students and practitioners . e referred toagain in connection with the histogenesis of ovarian dermoids. It will thus be seen that a variety of tissues of ectodermal and meso-dermal origin occur in these tumours, and some of them deserve moreparticular mention. Skin only occurs in patches ; it resembles its normal prototype inconsisting of a cuticleresting upon a cutis vera, and in being furnishedwith hair-follicles and abinidant sebaceous glands {see Fig. 396),and occasionally with a few ill-developed, spiral sweat-glands. Fattytissue is often found beneath it, and sometimes striped muscle-fibres. 692 GYNECOLOGY Imperfectly formed nails are also sometimes found. Hair in ovariandermoids may be either dark or light in colour ; individual hairs mayattain the length of many inches, and sometimes they grow through thecyst-wall so that their free ends appear upon the outer surface. Theinteresting statement is made by Bland-Sutton that as age advances,hair in ovarian dermoids becomes grey, or may be shed, rendering the. Fig. 396. Section through a Dermoid Process of a Teratomatous Ovarian Cyst. The section shows a patch of skin with a hair-follicle surrounded by abundant sebaceous glands. The tubules, a, a, represent rudimentary sweat-glands. dermoid tumour bald. Sebaceous glands are active and abundant,and form the source of the characteristic fatty contents of the halls have received special attention from are described as about the size of pills, and are composed of massesof shed epidermal scales, aggregated around a rolled-up hair. They arenot often seen, but may occur in very large numbers, so as practically tofill up the cyst-cavity. Teeth are found in upwards of 50 per cent, ofovarian dermoids. They are for the most part of the canine or incisortype, and consist of enamel and dentine. They may be very numerous,and as many as three hundred have been found in a single are often partly embedded in bone, a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgynecology, bookyear1
