TineaVersicolor-LO

TineaVersicolor-LO - Learning Objective: Tinea Versicolor...

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Learning Objective: Tinea Versicolor nm Definition - a common, benign, superficial cutaneous fungal infection characterized by hypo- or hyperpigmented macules and patches on the chest and back Causes - it is not contagious - why it affects some people and not others is not well understood but cell-mediated immunity plays some role in causing the disease (because pts affected have some immune system issue) Risk Factors/ Predisposing Factors - factors that lead to the conversion of the yeast to the parasitic form include: genetic predisposition (>20% of pts report a positive family history) warm, humid environments immunosuppression malnutrition Cushing disease Epidemiology - more common in warmer and more humid climates - 2-8% national prevalence in the US - most common in pts aged 15-24y/o when the sebaceous glands are more active (so it’s uncommon before puberty and after 65y/o) Pathophysiology - caused by the dimorphic, lipophilic fungal organisms in the genus Malassezia
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TineaVersicolor-LO - Learning Objective: Tinea Versicolor...

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