Common Skin Infections/ Infestations

Question 1

• Common Viruses:
  1. ) HPV: Caused by? DNA? Shows up as?
  2. ) HSV: DNA? Clinical presentation? Detected via? Possible occupational hazard?
  3. ) Varicella Zoster: Caused by? Clinical: First? Then? Comes back as? Test how?
• Common Bacteria:
  1. ) Impetigo: Often from? Most common? Clinical? Detect via?
  2. ) Cellulitis: Occurs in who? (3) 2 types: Erysipoles looks like? Caused by? Cellulitis? Caused by?
  3. ) Syphilis: Name? Cultured? Primary? Where? Secondary? (4) Diagnosed how? (3)

Answer 1

1. ) Papovirus, dsDNA, warts (verusccas)
2. ) dsDNA; grouped vessicles with erythymatous base; Tzank smear; Herpetic Whitlow
3. ) Herpes; fever; thin vessicles on erth. base (dew on pedals); shingles; Tzank smear
4. ) Strep pyro or staph; yes; bullus or non bullus blisters on kids faces (honey colored crust); gram
5. ) Young, old, immune supressed; well defined red wall on face (strep); extremities (staph)
6. ) Spirochite Treponema pallidum; non tender ulcer with lymphadenopathy; genitals/nails; annular body, mouth, hands, feet, moth eaten allopecia; can’t be cultured! biopsy, darkfield, serology

Question 2

• Fungal Infections:
  1. ) Dermatophytes: Microsporin, trichphyton, epidermophytin: Eat what? Tineas are? Mannum? Corporus? Cruris? Detected how?
  2. ) Candidiasis: Eats? Common in? Most common? Looks like? (4)
  3. ) Tinea versicolor: Malassezia furfur: Eats? Shows up as? (2) Leads to?
• Infestations:
  1. ) Scabies: Pruritis? Pattern? Where? Caused by? Diagnose via? (2)
  2. ) Lice: Where? (3) Worm? BM? Found where?
• a,B defensins, cathalicidin, psoriasin, RNase 7?

Answer 2

1. ) Keratin; ring worm; hand; body; penis; KOH and culture
2. ) Blood/sugar; Immuno and kids; Skin mucus membranes; albicans; Thrush, corners of mouth; b/n fingers, diaper rash
3. ) Follicular lipids; a tan or scaly macule; Truncal folliculitis
4. ) Nocturnal presentation; symmetrical; genitals, waist, bra, axillae; burrow (mite), lay eggs, poop; wet prep and biopsy
5. ) Body, head, crab; yes; can’t get through; epidermis
   - Innate peptides