Spectrophotometric intracutaneous analysis findings and characteristics in plantar verrues

Abstract

Background: Spectrophotometric intracutaneous analysis (SIAscopy) is a non-invasive computerized method that provides insights beyond dermoscopic examination. This study aimed to show the various findings of the plantar verrucae with the SIAscopy evaluation, which displays the chromophores of the skin, melanin, hemoglobin, and collagen. Methods: Plantar verrucae lesions scanned using SIAscopy, and their color, total melanin, dermal melanin, collagen, and blood views were recorded on a computer. These SIAgraphs were examined individually and compared to dermoscopic literature findings. Results: The results of color view were in conformity with dermoscopic findings reported in the literature. Among the findings detected for the first time by a SIAscopic examination, a white halo around the vessel in view of total melanin, effacement in the keratinized areas, and whitening in the vascular areas were noted. There was a mottled collagen condensation, which was believed to be induced by dermal papillomatosis in the lesions in the view of collagen, and consequently, as a result of remittent light reflections due to the collagen structure in this area. There was a clarification in the vascular structures that were noticed in the color view in the blood view. It was noted that vascular structures that have not yet been thrombosed under the thickened epidermis could not be detected in color view. Conclusion: Our study reveals that SIAscopy, a rapid, non-invasive, and easy-to-use examination method similar to dermoscopy, can also diagnose other skin diseases, particularly pathogenetic processes that induce epidermal and papillary dermis changes, apart from pigmented lesions. © 2023 Elsevier B.V.