Pityriasis versicolor Flashcards

1
Q

Verwekker Tinea versicolor

A
  • Verwekker: malassezia furfur en malassezia globosa

o Commensaal van huidflora en haren

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2
Q

PF Pityriasis versicolor

A
  • Onder gunstige omstandigheden malassezia veranderen van gist naar hyphale vorm –> productie dicarbonzuur –> inhibitie van tyrosinase in epidermale melanocyten –> hypomelanose
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3
Q

KO Pityriasis versicolor

A
  • Chronische, goed afgelijnde maculae met fijne schilfering, gehypo- of hyperpigmenteerd. Meestal ter hoogte van thorax
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4
Q

BO Pityriasis versicolor

A
  • Tapetest –> onderzoeken schilfering

- Wood’s lamp: blauw-groene fluorescentie

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5
Q

R Pityriasis versicolor

A
  • Ketaconazole shampoo
  • Azole crème
  • Terbinafine oplossing
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6
Q

RF pityriasis versicolor

A

Predisponerende factoren: zweten, warmte, hyperhydrosis, oily skin, …

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