Dermatology🌸 Flashcards
What part of the skin does erysipelas infect?
Superficial
Characteristics of erysipelas? (4)
Raised
Well-defined
Tender
Bright red
Most common causative organism of erysipelas?
Strep. Pyogenes
Test to diagnose pityriasis versicolor?
KOH preparation (potassium hydroxide)
Name of melanoma which extends to the proximal nail fold?
Subungual
Type of scars associated to severe acne
Ice-pick scars
Describe a Pyogenic granuloma
Rapidly growing, red nodule
Bleeds easily
What grading system is used for thickness of melanomas?
Breslow thickness
What virus is thought to be related to pityriasis rosea?
HHV 6&7
How does pityriasis rosea start?
Oval, pink scaly patch
What does Seborrhoeic mean?
Abnormally increased secretion of sebum, making oily/greasy scales on skin
Primary management of pityriasis rosea?
Reassurance and symptomatic treatment
First line treatment for erysipelas
Flucloxacillin
Preferred initial management of pityriasis versicolor
Ketoconazole shampoo
First line treatment for Seborrhoeic dermatitis
Topical anti fungal shampooo
What do we call a form of infantile Seborrhoeic dermatitis on the head?
Cradle cap
What colour does vitiligo go under Wood’s lamp?
Bright blue-white
What colour does pityriasis versicolor go under Wood’s lamp?
Yellow-green
Most common causative organism of erysipelas following minor skin trauma
Strep pyogenes
Most sensitive antibody in SLE
ANA
Skin manifestation of bechet’s disease
Erythema nodosum
Pathophysiology of pemphigus vulgaris
IgG deposition between cells in the epidermis
Parkland formula for burns fluid replacement
Weight kg X burn % X 4
What causes genital warts
HPV 6 & 11
Pathophysiology of pemphigus vulgaris
IgG autoantibody deposition
