The pathology and surgical treatment of tumors . -tions of different parts and organs that could originate only from adisplaced matrix representing different tissues and organs. Definition.—A dermoid cyst is a heterotopic tumor containing theproduct of epithelial proliferation, hair, teeth, etc. Dermoid cysts werefirst described in 1852 by Lebert, who applied the term dermoid toall cysts lined by a cyst-wall resembling in structure that of the exter-nal skin. Dermoid cysts are found most frequently in the ovary andin parts of the body where, during development, the different germinallayers mee
The pathology and surgical treatment of tumors . -tions of different parts and organs that could originate only from adisplaced matrix representing different tissues and organs. Definition.—A dermoid cyst is a heterotopic tumor containing theproduct of epithelial proliferation, hair, teeth, etc. Dermoid cysts werefirst described in 1852 by Lebert, who applied the term dermoid toall cysts lined by a cyst-wall resembling in structure that of the exter-nal skin. Dermoid cysts are found most frequently in the ovary andin parts of the body where, during development, the different germinallayers meet, as about the orbita, the neck, and the coccygeal 188 cases of dermoid cysts Lebert found that the ovary was theseat of the tumor in 129. Histology.—The wall of a dermoid cyst is composed of connectivetissue ; its inner surface is often smooth, resembling a serous surface,but microscopical examination always reveals an epithelial lining com-posed, according to the character of the epithelial cells, of one or more TERA TOM A. 627. Fig. 447.—Section from a congenital teratoma of the coccygeal region ; X 9° (after Perls). A : a, ciliatedepithelial lining of cysts : b, smooth muscle-fibres in which the striations are indistinct ; c, cartilage ; d, fattytissue. B, wall of a cyst lined by ciliated epithelium; X 3So (after Perls). layers (Fig. 447). If the cysts are lined with columnar or ciliatedepithelium, the cells are arranged, as a rule, in a single layer; if, on the
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectneoplas, bookyear1895
