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wavelength = 365nm
Uses:
| 1. | Hypo- vs. de- pigmented (if milk white then depigmented, if just lighter than skin, then hypopigmented) |
| 2. | To rule out erythrasma in intertrigo |
| - | corynebacterium, produce porphyrins |
| - | porphyrins under Wood’s lamp = coral red fluorescence |
| 3. | tinea capitis in children (some species of microsporum fluoresce yellow-green on Wood’s lamp) |
| 4. | urine from a patient with PCT shows orange-red fluorescence |
| 5. | in melasma: to distinguish epidermal from dermal pigment (epidermal pigment is accentuated by Wood’s lamp) |
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