Derm Terms Flashcards
Name the Lesion.
Examples?
Bulla: large, fluid-containing blister > 5mm
e.g. Bullous pemphigoid
Name the Lesion.
Examples?
Crust: dry exudate
e.g. Impetigo
Name the Lesion.
Examples?
Macule: flat, well-circumscribed lesion < 5 mm
e.g. Freckle, Labial macule
Name the Lesion.
Examples?
Papule: elevated solid skin lesion < 5 mm
e.g. Mole (nevus), acne
Name the Lesion.
Examples?
Patch: group of macules > 5mm
e.g. congenital nevus/large birthmark
Name the Lesion.
Examples?
Plaque: papule > 5 mm
e.g. Psoriasis
Name the Lesion.
Examples?
Pustule: vesicle containing pus
e.g. Pustular Psoriasis
Name the Lesion.
Examples?
Scale: flaking stratum corneum
e.g. Eczema, Psoriasis, Squamous cell carcinoma (figure)
Name the Lesion.
Examples?
Vesicle: small, fluid-containing blister
< 5mm
e.g. Chickenpox, Shingles
Name the Lesion.
Examples?
Wheal: transient smooth papule/plaque
e.g. Hives (urticaria)
What skin layer increases in hyperkeratosis?
Example?
Stratum corneum
e.g. Psoriasis
Difference between Hyperkeratosis and Parakeratosis?
In Parakeratosis, there is retention of nuclei in stratum corneum
Define Acantholysis.
Example?
Separation of epidermal cells
e.g. Pemphigus vulgaris
Which layer increases in Acanthosis?
Example?
Spinosum.
e.g. Acanthosis nigricans
Etiology of this skin disorder.
Albinism: decreased tyrosine kinase activity causing decrease melanin production
Etiology of skin disorder:
Melasma (Chloasma): “Mask” associated with pregnancy or OCP use
Etiology of this skin disorder:
Vitiligo: decreased melanocytes causing irregular depigmentation
