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- Elevated, circumscribed, encapsulated lesion; in dermis or subcutaneous layer; filled with liquid or semisolid material.
- (E.g. cystic acne)
Fine, irregular redlines produced by capillary dilation.
Heaped-up keratinized cells; flaky skin; irregular; thick or thin; dry or oily; variation in size (flaking skin)
- Rough, thickened epidermis secondary to persistent rubbing, itching, or skin irritation; often involves flexor surface extremity.
- (E.g. chronic dermatitis)
Irregularly shaped, elevated, progressively enlarged scar: grows beyond the boundaries of the wound; caused by excessive collagen formation during healing.
Thin to thick fibrous tissue that replaces normal skin after injury or laceration to the dermis.