Dr. Cubberly's Psychoderm Talk

Question 1

Alopecia with hair regrowth in all different stages

Answer 1

Trichopilomania

Question 2

Derm side effect of lithium

Answer 2

Acne!

Question 3

Things that may cause secondary delusional parasitosis

Answer 3

Strokes

Medical dopamine agonists

Substances: Cannabis, cocaine, amphetamines

Question 4

Matchbox sign

Answer 4

Patient brings in a physical sample of some sort claiming that it is an infectious mite or parasite, when in reality it is debris or something else.

So named because patients used to bring these in inside of matchboxes.

Question 5

DDx for delusional parasitosis

Answer 5

Scabies

Morgellons syndrome (often somatic/Munchausen/delusional, however some patients do have strand-like fibroblast proliferation)

Question 6

When examining a drug rash, ALWAYS check. . .

Answer 6

. . . mucous membranes

SJS and TEN involve mucous membranes.

Question 7

SJS-TEN prodrome

Answer 7

Fever, flu-like symptoms, conjunctavitis, pain with swallowing

On labs, anemia, mild transmainitis

Question 8

SJS-TEN occurs within. . .

Answer 8

. . . 2-8 weeks of starting treatment

Question 9

Preventing SJS-TEN

Answer 9

Start low, go slow

If a rash develops, immediately stop