carcinoma (kar-sin-o'mah)

PI. carcinomata. A cancer, especially of the forms composed of an alveolar network of fibroid ti ue, the interspaces containing epithelial cells and that usually spread by the lymphatics instead of by the blood ve els, adenoc. See adenocarcinoma. basal-celled c. An epithelioma or skin c, consisting of basal cells resembling the cells of the rete Malpighii. c. acinosum. A c. composed of grapelike acini. c. colloldes. See colloid c. c. cutanum, c. cutis. Cancer of the skin; epithelioma, c. cysticum papillare psammosum. A cystic c. bearing papillomatous growths in which some or all of the cellular elements have been transformed into calcareous concretions. It has been found in the ovarian region, c. durum. See scirrhous c. c. epitheliodes. See epithelioma. c. fibrosum. See scirrhous c. c. folliculare. A c. composed of follicles, as in cancer of the thyroid. C. glandulare. See adenocarcinoma. c. nematodes. A c. containing enlarged blood ve els, c. hyalinum. See colloid c. c. molle. See medullary c. c. o ific ans. A c. undergoing metaplastic o ification, c. psammosum. A c. in which the epithelial elements have been transformed into stratified calcareous concretions differing from those found in true psammoma. c. sarcoma to des. A malignant tumor of the testicle, ovary, or kidney, one part of which shows the glandular or epithelial structure, while another may show a gradual transition to the connective ti ue type of the sarcoma, c. simplex. See scirrhous c. c. syncytiale. See syncytioma malignum, under syncytioma. c. tubulare. A c. composed of tubular alveoli. colloid c. A c. showing colloid degeneration. colloid -celled c. A c. of a mucous membrane, in which the cells have undergone colloid degeneration, columnar celled c, cylindrical -celled c. A c. arising from the mucous membrane of the alimentary tract, consisting of columnar or cylindrical cells, cystic c, cystoid c. A c. containing one or more cysts or cyst like spaces, duct c. A c. arising from ducts, such as the bile ducts, encephaloid c. A c. consisting of a soft brain like ti ue, due to a preponderance of epithelial cells, epithelial c. See epithelioma, fibro so medullary c. A c. consisting of cells and stroma in about equal amounts. glandular-celled c. See adenocarcinoma and cylindrical epithelioma, hard c. See scirrhous c. medullary c. Soft cancer; a variety in which the cells exceed the stroma in amount and do not resemble acini or columnar or squamous epithelia. So called from its resemblance to brain ti ue. mucoid c. A c. that has undergone mucoid degeneration, sarcomatous c. See c. sarcoma to des. scirrhous c. C. in which the fibrous stroma predominates over the alveoli of epithelial cells, causing a firm, hard structure, soft c. See medullary c. squamous -celled c, squamous epithelial c. A c. consisting of flat cells, usually growing from the squamous epithelium of the skin, esophagus, or other epiblastic structures. telangiectatic c. See c. hematodes. tubular c. See cylindrama. [Gr., karkinoma, from karkinos, crab cancer, -foma, tumor.]