Tuesday - Westra - Chronic inflammatory dermatosis

Question 1

Psoriasis

Answer 1

Hyperkeratosis, uniform elongation of rete ridges. T-cell mediated autoimmune disorder.

Question 2

Chronic Plaque Psoriasis

Answer 2

On Scalp, extensor surfaces like elbow, knees, presacral, nails.

Question 3

Psoriasis: inverse type

Answer 3

intertriginous (fold) areas. Scale may not appear

Question 4

Psoriasis: Guttate Type

Answer 4

Post streptococcal infection. Usually childhood. sudden eruption of scaled spots of the trunk and proximal extremities.

Question 5

Psoriasis: Pustular type

Answer 5

Generalized: potentially life threatining, small pustules becoming generalized with fever

Localized: hand and foot form involves the palms and soles.

Question 6

Psoriatic arthritis

Answer 6

asymmetric and involves the fingers and toes. About one third of patients with psoriasis get this.

Question 7

Lichen planus

Answer 7

“interface dermatitis”
Chronic, inflammatory autoimmune disease associated with Hep C. on the wrists, chins mucous membranes.

White lacy lines and 6ps:
Planar purple polyginal puritic papules plaques

Question 8

Hallmarks of Linear (classical) Lichen Planus

Answer 8

erythematous to violaceous polygonal papules especially on the flexor areas like wrists, ankles, genitalia as well.

-Wickham’s striae (white lines)

Question 9

Systemic lupus erythematosus

Answer 9

• Photosensitive pattern of erythema
• butterfly rash across the nose and cheeks
• may become bullous
• IgG in the basement membrane fluoresces

Question 10

Subacute cutaneous lupus

Answer 10

Erythematous and usually scaling rash if upper trunk, psoriasis plaque like form.

Question 11

Chronic cutaneous lupus

Answer 11

Includes discoid lupus, tumid lupus, lupus panniculitis, verrucous lupus