Dermatology morphology Flashcards
(30 cards)
What are the 6 descriptors that are used when describing a lesion?
Palpability, color, shape, texture, size, location
If you run your fingers across flat, small lesions of any shape under 1 cm
macules (direct meaning: spot)
What is the primary lesion associated with tinea versicolor?
macule
If a macule is present then the process is confined to what part of the skin?
epidermis
T/F Macules can contain fluid and be raised
false, no fluid no elevation
What are secondary changes associated with macules
scales or crust
If a flat lesion is over 1cm then what is it called?
patch
What are large (>1cm), plateau like, raised lesions that can cast a shadow?
plaques
A plaque is the primary lesion of what disease?
psoriasis
What is the definition of a plaque?
proliferation of cells in epidermis or superficial dermis
A raised lesion measuring less than 1cm is called what?
papule (pimple)
What is a larger, deep papule associated with a proliferation of cells down to the mid-dermis?
nodule (small knot)
What is a raised area in the skin where the overlying epidermis looks and feels normal but a proliferation of cells in deeper tissues is called ?
nodule
What is a small, raised, fluid filled lesion?
vesicle (little bladder)
If lesions are grouped and follow a linear pattern around the trunk, what type of configuration is it?
dermatomal configuration
What is a vesicle the primary lesion?
shingles (adult)
what is a large (>1cm) blister?
bulla (bubble)
What is a vesicle filled with pus?
pustule
What is pus from a pustule composed of?
leukocytes and thin fluid called liquor puris
What is the superficial loss of the epidermis?
erosion
When do erosions occur?
after a vesicle forms and top peels off=>weep and become crusted
What is the secondary manifestations of a vesicle?
erosion, ulcers
If an erosion involves the dermis, what is it?
ulcer
What is an important difference in healing of ulcers and erosions?
ulcers heal with scarring; erosion do not