1556 



TUNICIN 



lyelo- 



C. Teratoid Tumors or Teratomata. 

 i. Dermoid cysts. 

 2. Cholesteatoma. 



T. albus, white swelling ; tuberculous arthritis. T., 

 Adenoid. Synonym of Adenoma. T., Adipose. Syn- 

 onym of Lipoma. T., Aneurysmal. Synonym of 

 Aneurysm. T., Anthracoid. Synonym of T. , Melan- 

 otic. T., Benign, one which does not give a metastasis 

 or recur after removal. T., Blood. Synonym of Hem- 

 atoma. T., Connective-tissue, any tumor made up of 

 connective tissue. The tumorsof the connective-tissue 

 class are sometimes termed Parablastomata. T., Cys- 

 tic, a tumor containing cysts or cavities filled with fluid. 

 Also a cyst forming a tumor. T., Dermoid, a dermoid 

 cyst. T., Desmoid, a hard fibroma. T., Erectile, 

 a tumor composed of blood-vessels, the filling of which 

 causes the tumor to become swollen. T., Fatty, 

 lipoma. T., Fibro-calcareous, a fibroma, the seat of 

 calcareous infiltration. T., Fibro-cellular. Synonym 

 of Fibroma, Soft. T., Fibro-cystic, a fibrous tumor 

 containing cysts. T., Fibro-fatty, a fibro-lipoma. 

 T., Fibro-muscular, a fibro-myoma. T., Fibro- 

 nucleated. Synonym of Sarcoma, Spindle-cell. T., 

 Fibro-plastic. Synonym of Sarcoma, Spindle-cell. T., 

 Fibrous, a fibroma. T., Fibro-vascular, a telangiec- 

 tatic fibroma. T., Floating, a tumor that changes its 

 place in a cavity of the body, as the abdomen. T. , Fol- 

 licular, an atheroma. T., Fungating, a tumor prolif- 

 erating actively on its surface ; usually applied to cysts, 

 the lining wall of which is proliferating. T. gallicus. 

 Synonym of Bubo. T., Gaseous, a tumor containing 

 gas. T., Glandular, an adenoma. T., Gubler's, a 

 prominence on the back of the wrist occasionally 

 seen in lead-palsy. T., Gummatous, T., Gummous, 

 T., Gummy, a syphilitic gumma. T., Hair, T., 

 Hairy, a dermoid cyst containing hair. T., Heter- 

 adenic, a hyaline cylindroma. T., Heterochronic, a 

 tumor made up of tissue which is not normally found 

 in the individual at the period of life at which the tumor 

 occurs. T., Heteroplastic, a tumor differing from the 

 tissue in which it grows. T., Heterotopic, a tumor 

 growing in tissue differing from that of which it is com- 

 posed. T., Homeomorphous. Synonym of T, 

 Homeoplastic. T., Homeoplastic, a tumor resembling 

 the tissue from which it grows. T., Homologous. 

 Synonym of T, Homeoplastic. T., Horny, cornu 

 cutaneum. T., Infectious Granulation-, a nodule 

 or node, due to infection with a specific microorganism. 

 T., Infiltrating, a tumor growing into the surrounding 

 tissues. T., Innocent. Synonym of 7'., Benign. T., 

 Irritable (of the breast), this maybe a painful adenoma 

 or a painful subcutaneous tubercle. T., Lacteal, a 

 galactocele. T., Lymph, a lymphangioma. T., Lym- 

 phadenoid, a lymphadenoma. T., Malignant, one 

 which gives metastasis or ■recurs, or does both, and 

 eventually destroys life. T., Melanic, T., Melanotic, 

 a tumor the seat of pigmentation by melanin. T., 

 Mesoblastic, T., Mesodermic, a tumor developed 

 from mesodermic tissue. T., Molluscous. Synonym 

 of Molluuum contagiosum. T., Movable, a tumor 

 which can be moved about. T., Mucoid, T., Mu- 

 cous-tissue, T., Mucous. Synonym of Myxoma. 



T., Muscular. Synonym of Myoma. T., Myeli 

 genie. Synonym of Sarcoma, Giant-cell. T., Mye- 

 loid, one containing giant-cells. T., Myoid. Syn- 

 onym of Leiomyoma. T., Nerve. Synonym of 

 Neuroma. T., Osseous. Synonym of Osteoma. T., 

 Osteoid, one in which bony tissue is developing. T., 

 Papillary. Synonym of Papilloma. T., Pearl, T., 

 Pearly. Synonym of Cholesteatoma. T., Pearly (of 

 the iris), a small cystic tumor of the iris, containing a 

 whitish, tallowy material. T., Perineal, the bulging 

 of the perineum produced by the fetal head in child- 

 birth. T., Phantom, an apparent abdominal tumor, 

 due to flatus or contraction of a section of an abdom- 

 inal muscle ; seen in hysterical persons. T., Pilo- 

 cystic, a dermoid cyst containing hair. T., Recur- 

 rent, one which returns after removal. T., Recur- 

 rent Fibroid, a spindle-cell sarcoma. T., Scalp. 

 Synonym of Caput succedaneum. T. of the Scalp, 

 Cock's Peculiar, a fungating growth of the sebaceous 

 glands of the scalp. T., Sebaceous, a tumor of a 

 sebaceous gland ; an atheroma. T., Serocystic, a 

 proliferation-cyst. T., Splenic, a term sometimes 

 applied to an enlarged spleen. T., Stercoral, a 

 tumor formed by impacted feces. T., Teratoid. 

 Synonym of Teratoma. T., Vascular. Synonym 

 of Angioma. T., Villous. Synonym of Papilloma. 

 See Tumors, Table of, beginning on page 1558. 



Tumultus (tu-muF-tus) [L.]. Tumult. T. sermo- 

 nis. See Aphasia. 



Tungsten (tutig* '-sten) [Swed. , " heavy stone"]. A 

 metal, symbol W, at. wt. 183.5, having properties 

 like those of uranium and molybdenum. Some of 

 its compounds have been employed in medicine. 

 They are now chiefly used as reagents. See Elem 

 Table of. 



Tunica (tu* '-nik-ah) [L., a cloak: //. , Tunica']. 

 enveloping or covering membrane. T. adventitia. 

 See Artery. T. albuginea oculi, a tendinous 

 brane of the sclerotic coat. T. albuginea ovi. t 

 thin, compact, distinctly marked zone of conneethe 

 tissue immediately under the epithelium of the cortex 

 of the ovary. T. albuginea testis, the fibrous 1 

 ing of the testis. T. cellulosa. See T submuepn 

 T. fibrosa, the external layer of the connective 

 envelop of the Graafian follicle. T. fibrosa intestin- 

 alis. See T. submucosa. T. granulosa, the 

 of epithelial cells lining the follicle of the Graatia: 

 vesicle. T. intima. See Artery. T. media, i 

 Artery, also T. uvea. T. mucosa, the mucous men 

 brane of a part. T. muscularis, the muscular coal 

 surrounding certain organs, as the intestine, the uterus, 

 etc. T. nervosa. See T. sub-mucosa. T. propria, 

 one of the layers of the Graafian follicle. T. re- 

 flexa, the parietal portion of the tunica vaginalis. 

 T. ruyschiana, a name given to the internal la 

 of the choroid coat of the eye, consisting ot a plan 

 of capillary vessels. T. serosa, the serous c < 

 the small intestines. T. submucosa, the subn 

 areolar tissue of the small intestines ai 

 other organs. T. uvea, the uveal tract of tin 

 composed of the iris, ciliary body, and choroid. T. 

 vaginalis, a name given to the serous co\ 

 the testis, and also to the membranous sac I 

 Tenon) enveloping the eye. T. vasculosa, 

 cular layer of the testis, called also the pia 

 the testis. See T uvea. 



Tunicate (tu'-nik-at) [tunica, tunic]. In biolofl 

 Having coverings or coats. A bulb like that ot 

 onion is tunicated. 2. An Ascidia/t. 



Tunicin (tu'-nis-in) [tunica, a coat]. Animal celh 

 lose ; a carbohydrate constituting the chief part of tl 

 mantle of Tunicata (Ascidians). It is soluble W 



