Lesion Distribution Terminology Flashcards
What is the term for lesions that are circular, begin in the center, and spread to the periphery?
Annular
Example: tinea corporis (ringworm)
What does unilateral distribution refer to in lesion distribution?
Lesions present on one side of the body
What is meant by asymmetric lesion distribution?
Lesions that are not identical on both sides of the body
Define confluent lesions.
Merging together lesions (e.g., urticaria [hives])
What is the definition of discrete lesions?
Distinct individual lesions that are separate (e.g., acne)
What does gyrate refer to in lesion distribution?
Twisted, coiled spiral, snakelike lesions
What characterizes grouped lesions?
Clusters of lesions (e.g., vesicles of contact dermatitis)
What does localized mean in the context of lesion distribution?
Clearly defined, limited areas of involvement (confined to one area)
What is the term for annular lesions that grow together?
Polycyclic
Example: psoriasis
What is a solitary lesion?
Single lesion
What does symmetric lesion distribution indicate?
Bilateral distribution of lesions
Define zosteriform lesions.
Linear arrangement along a dermatome area (e.g., herpes zoster)
