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 eruption said to be discrete?# When the lesions constituting the eruption are isolated, having more or less intervening normal skin. #When is an eruption confluent?# When the lesions constituting the eruption are so closely crowded that a solid sheet results. #When is an eruption uniform?# When the lesions constituting the eruption are all of one type or character. #When is an eruption multiform?# When the lesions constituting the eruption are of two or more types or characters. #When are lesions said to be aggregated?# When they tend to form groups or closely-crowded patches. #When are lesions disseminated?# When they are irregularly scattered, with no tendency to form groups or patches. #When is a patch of eruption said to be circinate?# When it presents a rounded form, and usually tending to clear in the centre; as, for example, a patch of ringworm. #When is a patch of eruption said to be annular?# When it is ring-shaped, the central portion being clear; as, for example, in erythema annulare. #What meaning is conveyed by the term "iris"?#