levated, is usually dark in color, and
of the size of a pea or finger-nail.

#Describe verruca plana juvenilis.#

The warts are mostly pin-head in size, flat, but slightly elevated,
rounded, irregular or square-shaped, and of a light yellowish-brown
color. They bear resemblance to lichen planus papules. They are apt to
be numerous, often becoming aggregated or fused, and occur usually in
young children, and, as a rule, on the face and hands.

#Describe verruca filiformis.#

This is a thread-like growth about an eighth or fourth of an inch long,
and occurring commonly about the face, eyelids and neck. It is usually
soft to the touch and flexible.

#Describe verruca digitata.#

This is a variety of wart, which, especially about the edges, is marked
by digitations, extending nearly or quite down to the base. It is
commonly seen upon the scalp.

#Describe verruca acuminata.#

This variety (_venereal wart_, _pointed wart_, _pointed condyloma_),
usually occurs about the genitalia, especially upon the mucous and
muco-cutaneous surfaces. It consists of one or more groups of
acuminated, pinkish or reddish, raspberry-like elevations, and,
according to the region, may be dry or moist; if the latter, the
secretion, which is usually yellowish and puriform, from rapid
decomposition, develops an offensive and penetrating odor. The formation
may be the size of a small pea, or may attain the dimensions of a fist.

#What is the cause of warts?#

The etiology is not known. They are more common in adolescent and early
adult life. Irritating secretions are thought to be causative in the
acuminated variety. It is highly probable that a parasitic factor will
finally be demonstrated. They are doubtless mildly contagious.

[Illustration: Fig. 33.
Verruca Acuminata--about the anus. (_After Ashton._)]

#State the pathology of warts.#

A wart consists of both epidermic and papillary hypertrophy, the
interior of the growth containing a vascular loop. In the acuminated
variety there are marked papillary enlargement, excessive development of
the mucous layer, and an abundant vascular supply.

#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 tou