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Official Journal of the Italian Society of Dermatology and Sexually Transmitted Diseases
Indexed/Abstracted in: EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,014
Online ISSN 1827-1820
Rosina P., Giovannini A., Zamperetti M. R., Chieregato C., Barba A.
Division of Dermatology and Venereology Department of Biomedical and Surgical Sciences University of Verona, Verona, Italy
Aim. Video-capillaroscopy is a non invasive technique used for the direct observation of the cutaneous superficial capillary microcirculation. In psoriasis this method shows specific capillary alterations (pattern) comparable to histopathologic modifications.
Methods. We performed optical probe capillaroscopy (VIDEOCAP), at 100× and 200× magnification, on 40 patients affected by different types of psoriasis (guttate, nummular, patchy, palm-plantar and inverted) and we analyzed lesions in different cutaneous sites (scalp, trunk, limbs, palm, sole, folds).
Results. All lesions show a typical pattern with altered dilated and tortuous capillary-loops that appear with a characteristic clew form. In addition, the mean number of capillaries per mm2 is 22,7 (16-32) and the mean diameter of the clew is 76 µm (45-140). These aspects are the same in every type and site of psoriasis.
Conclusion. In conclusion, psoriasis has a constant capillaroscopic pattern in all its types and cutaneous sites.