MYXOMA

(Lat.), n. n. Mi2x(mu6x)-om'a3. Gen., -om'atos (-at is). From juvfa, mucus (see also -oma*). Fr., myxo me. Ger., Myxom, Gallertyeschwulst. It., mi oma. An embryonic-ti ue tumor consisting of a homogeneous or finely fibrillated, soft, gelatinous basement substance in which are imbedded a variable number of spheroidal, fusiform, branching, and often anastomosing cells. They may contain few or many blood-ve els and nerves. [Prudden (a, 34).] Arborescent m. Of Waldeyer, a m. having polypoid branches, [a, 34.] Cartilaginous m. Lat., m. cart i lag i neum. A m. which either has a firmer consistence than usual or contains cells like those of cartilage. [E.] Cystic m., Cystoid m. A m. containing parts so fluid as to resemble cysts. [E.] IMft'use m. of the membranes. Fr., myxo me diff us des membranes. Of Breslau, Eberth, and Spiegel berg, a mucous thickening of the chorion, the mucous material containing round, acicular, or stellate cells, partly physaliphorous, accompanied with thickening of the amnion and an absence of the intermediate layer in places. The outer surface of the chorion presents numerous prominences, varying from the size of a pea to that of a cherry flattened and obscurely fluctuating. [A, 15.] Diffuse in. of the placenta. Fr., myxo me (diff us) du placenta. See Vesicular MOLE. Eiichondromatous m. A m. containing nodules of hyaline cartilage, [a, 34.] Erectile m. See Teleringeiectatic m. Fibrous m. Lat., m. fibrosum. A m. consisting largely of fibrous ti ues. [E.] Haemorrhagic m. Of Cornil and Ranvier, m. in which there are distention and rupture of the blood-ve els, [a, 34.] Hyaline m. Lat., m. hyalinum. A form of m. in which the ti ue is translucent. [E.] Intra-canalicular m. of the mamma. Ger., intracanaliculares Myxom. A m. developing in the interstitial connective ti ue of the mamma, and sending polypoid expansions into the dilated ducts of the gland. [Jungst, "Arch. f. path. Anat. u. Physiol. u. f. klin. Med.." xcv, 2, p. 195 (a, 34).] L,ipo-m., Upomatous m. Lat., m. lipoma to des. A m. containing much fat. [E.] Medullary in. Lat., m. me dull are. A m. containing a large number of cells; it may present the appearance of a sarcoma, and is white and opaque. [Prudden (a. 34).] M. enchondroma to des arboresceiis. See Enchondromatous m. M. gelati no sum. A soft m. containing comparatively few cells and much translucent basement substance. [Prudden (a, 34).] M. intracaiialiculare arbores cens mammae. See Intra-canalicular m. M. lipoma to des. See Lipomatous m. M. me dull are. See Medidlary m.- M. molle. See M. gelati no sum. M. multiplex chorii. Of Jarotzky and Waldeyer, myxomatous degeneration of the chorion tufts of a mole that have grown into the blood spaces of the uterine substance, [a, 34.] M. of the chorion. Fr., myxo me (ou hyperfrophie [Ercolani]) des villosites choria les. Of Virchow. a vesicular mole. [A. 15.] M. of the serotina. Fr., myxo me de la serotine (ou de Vorgane glandulaire). Of Ercolani, a form of degeneration of the placenta in which, while its gro appearance is unchanged, the parenchyma of the villi is atrophied and has undergone fibrous degeneration. [A, 15.] Placental m. See Vesicular MOLE. Teleangeiectatic m., Vascular m. Lat., m. teleangeiectodes. A m. of highly vascular structure. [E.] [s. 65]