often considerably; thus upon the scalp, upon the general surface,
and upon the bearded region, the disease usually presents totally
different appearances.

#Describe the symptoms of ringworm as it occurs upon non-hairy portions
of the body.#

Ringworm of the general surface (_tinea trichophytina corporis_, _tinea
circinata_) appears as one or more small, slightly-elevated,
sharply-limited, somewhat scaly, hyperaemic spots, with, rarely, minute
papules, vesico-papules, or vesicles, especially at the circumference.
The patch spreads in a uniform manner peripherally, is slightly scaly,
and tends to clear in the centre, assuming a ring-like appearance. When
coming under observation, the patches are usually from one-half to one
inch in diameter, the central portion pale or pale red, and the outer
portion more or less elevated, hyperaemic and somewhat scaly. As commonly
noted one, several or more patches are present. After reaching a certain
size they may remain stationary, or in exceptional cases may tend to
spontaneous disappearance. At times when close together, several may merge
and form a large, irregular, gyrate patch.

Itching, usually slight, may or may not be present.

Exceptionally ringworm appears as a markedly inflammatory pustular
circumscribed patch, formerly thought to be a distinct affection and
described under the name of _conglomerate pustular folliculitis_. It
consists of a flat carbuncular or kerion-like inflammation, somewhat
elevated, and usually a dime to silver dollar in area. The most common
seats are the back of the hands and the buttocks. The surface is
cribriform, and a purulent secretion may be pressed out from follicular
openings.

[Illustration: Fig. 68.
Tinea trichophytina cruris--so-called eczema marginatum--of unusually
extensive development. (_After Piffard._)]

#Describe the symptoms of ringworm when occurring about the thighs and
scrotum.#

In adults, more especially males, the inner portion of the upper part of
the thighs and scrotum (_tinea trichophytina cruris_, so-called _eczema
marginatum_) may be attacked, and here the affection, favored by heat
and moisture, develops rapidly and may soon lose its ordinary clinical
appearances, the inflammatory symptoms becoming especially prominent.
The whole of this region may become involved, presenting all the
symptoms of a true eczema; the border, however, is sharply defined, and
usually one or more outlying patches of the ordi