Skin: Lesion Shapes Flashcards
Annular
Circular lesion, begins in centre and spreads out. Tinea, ringworm.
Confluent
Lesions that merge together, ex. Hives. Start distinctly and then flow together.
Discrete
Acne/pimple. On own, independent.
Grouped
Clusters of lesions, ex. Poison ivy or contact dermatitis. Different from confluent because no discernible outlines.
Gyrate
Twisted, coiled, spiral, snakelike.
Target
“Iris” lesions, darker in centre and lighter as you go out with concentric rings around lesion.
Linear
Straight line.
Zosteriform
Linear arrangement along a nerve route, ex. Herpes zoster
Polycyclic
Annular lesions that grow together. Different from confluent because they are separate and discrete, just growing close together.