lesions
of herpes zoster, and of vesicular eczema.

#What are blebs (bullae)?#

Rounded or irregularly-shaped, pea to egg-sized epidermic elevations,
with fluid contents; in short, they are essentially the same as vesicles
and pustules except as to size; as, for example, the blebs of pemphigus,
rhus poisoning, and syphilis.

#What are pustules (pustulae)?#

Circumscribed epidermic elevations containing pus; as, for example, the
pustules of acne, of impetigo, and of sycosis.

#Secondary Lesions.#

#What are secondary lesions?#

Those lesions resulting from accidental or natural change, modification
or termination of the primary lesions.

#Enumerate the secondary lesions.#

Scales, crusts, excoriations, fissures, ulcers, scars and stains.

#What are scales (squamae)?#

Dry, laminated, epidermal exfoliations; as, for example, the scales of
psoriasis, ichthyosis, and eczema.

#What are crusts (crustae)?#

Dried effete masses of exudation; as, for example, the crusts of
impetigo, of eczema, and of the pustular and ulcerating syphilodermata.

#What are excoriations (excoriationes)?#

Superficial, usually epidermal, linear or punctate loss of tissue; as,
for example, ordinary scratch-marks.

#What are fissures (rhagades)?#

Linear cracks or wounds, involving the epidermis, or epidermis and
corium; as, for example, the cracks which often occur in eczema when
seated about the joints, the cracks of chapped lips and hands.

#What are ulcers (ulcera)?#

Rounded or irregularly-shaped and sized loss of skin and subcutaneous
tissue resulting from disease; as, for example, the ulcers of syphilis
and of cancer.

#What are scars (cicatrices)?#

Connective-tissue new formations replacing loss of substance.

#What are stains?#

Discolorations left by cutaneous disease, which stains may be transitory
or permanent.

#Distribution and Configuration.#

#What do you mean by a patch of eruption?#

A single group or aggregation of lesions or an area of disease.

#When is an eruption said to be limited or localized?#

When it is confined to one part or region.

#When is an eruption said to be general or generalized?#

When it is scattered, uniformly or irregularly, over the entire surface.

#When is an eruption universal?#

When the whole integument is involved, without any intervening healthy
skin.

#When is an eruptio