Derm- leg skin conditions

Question 1

what is a leg ulcer

Answer 1

chronic leg ulcer is an open lesion between the knee and ankle joint that remains unhealed for at least 4 weeks

Question 2

what is erythema nodosum

Answer 2

represents a form of panniculitis, or inflammation of the sebcutaneous fat, which manifests as tender, raised, erythematous nodules predominantly affecting the shin area

Question 3

where does erythema nodosum predominantly affect

Answer 3

shins

Question 4

causes of erythema nodosum (NODOSUM)

Answer 4

NO cause (idiopathic)
Drugs- sulfanomides, dapsone
Oral contraceptive pill
Sarcoidosis
Ulcerative colitis/crohns disease
Microorganisms; Tb, strep, toxoplasmosis

Question 5

what percent of erythema nodosum cases are idiopathic

Answer 5

50%

Question 6

which drugs can cause erythema nodosum

Answer 6

sulfanomides
dapsone

Question 7

how does erythema nodosum present

Answer 7

tender, raised, red/violet nodules, usually located on anterior surfaces of legs