nary clinical type of
the disease may be seen.

#Describe the symptoms of ringworm when involving the nails.#

In ringworm of the nails (_tinea trichophytina unguium_) these
structures become soft or brittle, yellowish, opaque and thickened the
changes taking place mainly about the free borders. Ringworm on other
parts usually coexists.

#Describe the symptoms of ringworm as it occurs upon the scalp.#

Ringworm of the scalp (_tinea trichophytina capitis_, _tinea tonsurans_)
begins usually in the same manner as that upon the general surface, but,
as a rule, much more insidiously. Sooner or later, however, the hair and
follicles are invaded by the fungus, and in consequence the hair falls
out or becomes brittle and breaks off. The follicles, except in
long-standing cases, are slightly elevated and prominent, and the patch
may have a puffed or goose-flesh appearance. In addition, there is
slight scaliness.

#Describe the appearances of a typical patch of ringworm of the scalp.#

The patch is rounded, grayish, somewhat scaly, and slightly elevated;
the follicles are somewhat prominent; there is more or less alopecia,
with here and there broken, gnawed-off-looking hairs, some of which may
be broken off just at the outlet of the follicles and more or less
surrounded by a whitish or grayish-white dust. This type is produced by
the small-spore fungus--microsporon.

#Does ringworm of the scalp always present typical appearances?#

Not invariably. In some cases the patch or patches may become almost
completely bald, and in others a tendency to the formation of pustules,
with more or less crust-formation, may be seen. The affection may also
appear as small scattered spots or points.

[Illustration: Fig. 69.
Ringworm (rather inflammatory type, and produced by the trichophyton).]

The markedly inflammatory and pustular types are produced by the
large-spore fungus--trichophyton.

#What is tinea kerion?#

Tinea kerion (_kerion_) is a markedly inflammatory type of ringworm of
the scalp involving the deeper tissues, appearing as a more or less
bald, rounded, inflammatory, [oe]dematous, boggy, honeycombed tumor,
discharging from the follicular openings a mucoid secretion.

#Does ringworm of the scalp ever occur in adults?#

No. (Extremely rare exceptions.)

[Illustration: Fig. 70.
Ringworm Fungus (Trichophyton) x 450. (_After Duhring._) As found in
epidermic scrapings of ringworm, showing mycelium and