UWORLD PAPULOSQUAMOUS DISORDERS
PREPARATION TEST 2026 QUESTIONS AND
CORRECT ANSWERS GRADED A+
● Auspitz sign. Answer: present in psoriasis , caused by when you
scratch skin it causes pinpoint bleeding
● koebner phenomenon. Answer: new psoriatic plaques form over areas
of skin trauma, like a scar
● biological cause of psoriasis. Answer: autoimmune disease involving
cytokines (pro0inflammatory proteins)
causes thicken ing of skin
also genetic for chromosome 6 has cause for cell coding and immune
functions seen in patients
● psoriatic arthritis. Answer: An inflammatory arthritis associated with
psoriasis of the skin
same inflammatory response attacks joints seen in 30% of patients
skin symptoms come first
● nail psoriasis. Answer: skin underneath nail is inflamed and won't
attach to nail so it causes pitting, sublingual discoloration
, difficult to treat since meds don't penetrate well
● guttate psoriasis. Answer: small plaques throughout body caused by
strep bacteria, so patients might also have URI or strep thorat
can be mistaken for tinea
● pustular psoriasis. Answer: small pustules, common on hands and feet
if it is spread to whole body, pt can be increased to infection since tissue
is open
● inverse psoriasis. Answer: occurs in skin folds on a flexor surface like
armpit, under breast, inside elbow
● psoriasis treatment. Answer: this is a chronic condition, so treatment
aims at controlling this, but it will never go away
depends on severity of disease can be topicals-> phototherapy to
systemic meds
● topical steroids. Answer: first line treatment to psoriasis since it
decreases inflammation
used when less than 5% BSA is seen
PREPARATION TEST 2026 QUESTIONS AND
CORRECT ANSWERS GRADED A+
● Auspitz sign. Answer: present in psoriasis , caused by when you
scratch skin it causes pinpoint bleeding
● koebner phenomenon. Answer: new psoriatic plaques form over areas
of skin trauma, like a scar
● biological cause of psoriasis. Answer: autoimmune disease involving
cytokines (pro0inflammatory proteins)
causes thicken ing of skin
also genetic for chromosome 6 has cause for cell coding and immune
functions seen in patients
● psoriatic arthritis. Answer: An inflammatory arthritis associated with
psoriasis of the skin
same inflammatory response attacks joints seen in 30% of patients
skin symptoms come first
● nail psoriasis. Answer: skin underneath nail is inflamed and won't
attach to nail so it causes pitting, sublingual discoloration
, difficult to treat since meds don't penetrate well
● guttate psoriasis. Answer: small plaques throughout body caused by
strep bacteria, so patients might also have URI or strep thorat
can be mistaken for tinea
● pustular psoriasis. Answer: small pustules, common on hands and feet
if it is spread to whole body, pt can be increased to infection since tissue
is open
● inverse psoriasis. Answer: occurs in skin folds on a flexor surface like
armpit, under breast, inside elbow
● psoriasis treatment. Answer: this is a chronic condition, so treatment
aims at controlling this, but it will never go away
depends on severity of disease can be topicals-> phototherapy to
systemic meds
● topical steroids. Answer: first line treatment to psoriasis since it
decreases inflammation
used when less than 5% BSA is seen
