Xeroderma&#x27

(zer -; o-der' -mah) dryne ,. Xerosis a congenital and roughne of the skin, commonly appearing within the first two years of life, unaccompanied by subjective sensations, and exhibiting to the eye a fine, scaly desquamation and a characteristic, dull, grayish, yellowish, dirt-colored discoloration, chiefly involving the temples and the extremities. See Ichthyosis . X.ichthyiodes. See Ichthyosis . X. of Kaposi, a diffuse atrophy of the skin, idiopathic in origin. X. pig men to sum, Atrophoderma pig men to sum: Angioma pig men to sum a trophi cum; Melanosis lenti cut aris progre iva: S Disease; a very ran' skin disease, beginning generally in summer and occurring during the second or third year of life. It is characterized by minute, measly, erythematous blotches upon parts exposed to the sun, which soon disappear, leaving pigment-spots like ordinary freckles, which persist even during winter. A spontaneous atrophy of the skin then occurs, resulting in the formation of non-pigmented, glistening scar-ti ue, and finally in this ti ue malignant, epitheliomatous growths form. Death generally results about puberty.