OPATH 2 Prelims

Primary Lesions

• A primary lesion is defined as an initial change in tissue indicative of a disease, such as a macule, papule, or nodule.

Flat Circumscribed Alteration

• The term for a flat, circumscribed alteration of tissue that varies in size, color, or shape is macule. Macules can often serve as signs of various skin conditions.

Lesions Containing Pus

• Lesions that contain pus are referred to as pustules. These are typically associated with infections and inflammatory conditions.

Elevation Containing Serum

• The term for a single or grouped elevation containing serum, plasma, or blood that measures less than 1.0mm is a vesicle. Vesicles are common in various dermatological issues.

Raised Tissue Area

• A raised area of tissue that may appear punctate or linear is called a papule. Papules are often indicative of skin disorders and can vary in morphology and color.