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Flashcards in Pruritus Deck (13):
1

C type fibers are located

Intaepidermal

2

Best for cholestatic pruritus

Opioid antagonist

*serum conjugated bile acid levels do NOT correlate with severity of pruritus

3

MC systemic cause of pruritus

CKD
* due to xerosis, hypervitamintosis a, anemia, hyperpara, increased histamine, neuropathy

4

Mycotic pruritus ani

Candida
Epidermophyton flocc
T rubrum

5

Aquagenic pruritus

Degranulation of MC and increased histamine & ach found
Associated with poly vera, jxg, hypereo syndrome, myelodysplastic syndrome

6

Associated with papuloerythroderma of ofuji

T cell lymphoma, B cell lym, sezary, hep c, aspirin, ranitidine, furosemide

7

MC disorder associated with trichitillomania

OCD

8

Characterized by uncontrollable desire to rub/pinch oneself

Dermatothlasia

9

Burning mouth tx

Antidepressants
Alpha lipoic acid

10

Roth bernhardt syndrome

Meralgia parasthetica
*entrapment of lateral femoral cutaneous nerve

11

What may aid in dx of CRPS

Three-phase technetium bone scan

12

Common complication of crps

Osteoporosis

13

Familial dysautonomia (Riley day)

AR, IKBKAP, abnormality in splicing mRNA
Defective lacrimation, decreased pain, impaired temperature an BP regulation, absent DTRs
Hyperhidosis, transient erythema predominantly on the trunk, acrocyanosis, absence of tongue papillae
Shirmir test positive, intadermal histamine test diminished

Congenital insensitivity to pain with anhidrosis - repeated injury to acral/oral sites, TRKA gene (encodes nerve growth factor)