Give the treatment of warts.
For ordinary warts, excision or destruction by caustics. The repeated application of a saturated alcoholic solution of salicylic acid is often curative, the upper portion being pared off from time to time. The filiform and digitate varieties may be snipped off with the scissors, and the base touched with nitrate of silver; or a ligature may be used. Curetting is a valuable operative method. The growths may also be removed by electrolysis. When warts are numerous and close together parasiticide applications can be daily made to the whole affected region. For this purpose a boric acid solution, containing five to thirty grains of resorcin to the ounce, and Vleminckx's solution, at first diluted, prove the most valuable.
Verruca acuminata is to be treated by maintaining absolute cleanliness, and the application of such astringents as liquor plumbi subacetatis, tincture of iron, powdered alum and boric acid. The salicylic acid solution may also be used. In obstinate cases, glacial acetic acid or chromic acid may be cautiously employed.
Nævus Pigmentosus.
(Synonym: Mole.)
Describe nævus pigmentosus.
Nævus pigmentosus, commonly known as mole, may be defined as a circumscribed increase in the pigment of the skin, usually associated with hypertrophy of one or all of the cutaneous structures, especially of the connective tissue and hair. It occurs singly or in numbers; is usually pea-, bean-sized or larger, rounded or irregular, smooth or rough, flat or elevated, and of a color varying from a light brown to black; the hair found thereon may be either colorless or deeply pigmented, coarse and of considerable length. It is, as a rule, a permanent formation.
Name the several varieties of nævus pigmentosus met with.
Nævus spilus, nævus pilosus, nævus verrucosus, and nævus lipomatodes. So-called linear nævus might also be considered as belonging in this group.
What is nævus spilus?