Skin capacitance mapping of psoriasis

Abstract

Skin capacitance imaging is a non-invasive, non-optical method that distinguishes three contrasting levels of stratum corneum hydration in psoriatic lesions. The lowest capacitance level probably corresponded to xerotic orthokeratosis. The medium capacitance level presumably identified foci of parakeratosis and clumps of neutrophils. The highest capacitance level suggested exsudation at the site of prominent vessel dilation and dermal inflammation. Impaired sweating in the psoriatic lesions may potentially interfere with body thermoregulation.

Sebaceous Gland Atrophy in Psoriasis: An Explanation for Psoriatic Alopecia?

“…As assessed by skin capacitance mapping, this appears to be due to a marked reduction of functioning acrosyringial ostia, which is confined to psoriasis lesions (Xhauflaire-Uhoda et al, 2006). We found a significant, 67% reduction in eccrine duct volume in PP vs. PN skin, when measured as a percentage of total epithelial volume (Figure 4D).…”

Contrasted Skin Capacitance Imaging of Seborrheic Keratoses and Melanocytic Nevi

“…Such a water fl ux ultimately steeps the stratum corneum. This situation has been observed in infl ammatory acne lesions [12] and in acute psoriatic lesions [13] .In conclusion, skin capacitance imaging provides nonoptical pictures showing aspects invisible to the naked eye. The infl ammatory and noninfl ammatory types of melanocytic nevi and seborrheic keratoses are clearly distinguished by this method.…”

The Skin Landscape Following Nonoptical Capacitance Imaging

“…SCI reveals a patchwork of different electrical properties on lesional skin. [30] Whitish low capacitance is typical for stable hyperkeratotic plaques. More inflammatory and evolving plaques show darker, high-capacitance spots.…”