Background: Minocycline has a characteristic yellow-green fluorescent emission. This fluorescence has been previously demonstrated only in type 1 minocycline-induced skin hyperpigmentation. Objective: To investigate whether the fluorescence can be detected in other types of minocycline-induced cutaneous hyperpigmentation, and to study the possible mechanisms. Methods: Biopsies of pigmented and nonpigmented skin from 3 patients with different types of skin hyperpigmentation induced by minocycline were analysed by light microscopy and Confocal Laser Scanning Microscope (CLSM). Results: A yellow-green fluorescence was observed in the hyperpigmented skin of two patients with type 2, and one patient with type 4 minocycline-induced cutaneous hyperpigmentation. No fluorescence was detected in the non-pigmented skin. Conclusion: Minocycline can possibly serve as a fluorescent probe in the diagnosis of all types of minocycline-induced cutaneous hyperpigmentation.
|Number of pages||5|
|Journal||Journal of the European Academy of Dermatology and Venereology|
|State||Published - Apr 2006|
- Confocal microscope