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|Title:||In vivo multiphoton microscopy of melasma.|
Harris, Ronald M.
Tromberg, Bruce J.
|Title:||Pigment Cell and Melanoma Research|
|Publisher/Platform:||Wiley-Blackwell - STM|
|Year of Publication:||2019|
|Publikation type:||Journal Article|
|Abstract:||Melasma is a skin disorder characterized by hyperpigmented patches due to increased melanin production and deposition. In this pilot study, we evaluate the potential of multiphoton microscopy (MPM) to characterize non-invasively the melanin content, location, and distribution in melasma and assess the elastosis severity. We employed a clinical MPM tomograph to image in vivo morphological features in melasma lesions and adjacent normal skin in 12 patients. We imaged dermal melanophages in most dermal melasma lesions and occasionally in epidermal melasma. The melanin volume fraction values measured in epidermal melasma (14% ± 4%) were significantly higher (p < 0.05) than the values measured in perilesional skin (11% ± 3%). The basal keratinocytes of melasma and perilesions showed different melanin distribution. Elastosis was predominantly more severe in lesions than in perilesions and was associated with changes in melanin distribution of the basal keratinocytes. These results demonstrate that MPM may be a non-invasive imaging tool for characterizing melasma.|
|DOI of the first publication:||10.1111/pcmr.12756|
|Link to this record:||hdl:20.500.11880/28012|
|Date of registration:||7-Oct-2019|
|Faculty:||NT - Naturwissenschaftlich- Technische Fakultät|
|Department:||NT - Systems Engineering|
|Professorship:||NT - Prof. Dr. Karsten König|
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