Patrones dermatoscópicos en cromoblastomicosis, reporte de casos clínicos.

Abstract

Introduction: Chromoblastomycosis is a disease caused by dematiaceous fungi. It can cause tissue fibrosis and severe lymphedema in some patients. It is distributed worldwideand has endemic foci in some tropical and subtropical countries. The  largest number of case reports are established in Brazil, Costa Rica, Mexico, Venezuela and Madagascar. Currently, there are few reports of dermatoscopic findings of the entity, carried out in an isolated and individual manner. There are no preliminary studies published in case series. Objective: Description of dermatoscopic patterns in a series of patients diagnosed with chromoblastomycosis. Method: This is a descriptive cross-sectional study. The patient collection period was carried out between July and December 2024, and eight patients entered the study. Results: 100% had a positive direct mycological examination KHO at 10% showing the presence of fumagoid cells, in 100% there was a positive growth corresponding to Cladiophialophora Carrionii, five common dermatoscopic elements were obtained, which can be grouped as follows: presence of hemorrhagic black stippling, pink and orange globules, yellowish white scales, erythematous background and loss of hair structure. The most frequent clinical variety was plaque presentation (62.5% (5 patients), 12.5% had a verrucous or vegetative presentation, 12.5% had a scarring presentation, and 12.5% had a tumor-like presentation. The dermoscopic patterns were similar despite the diversity of clinical presentations. Conclusion: The introduction of diagnosis by dermoscopy expands knowledge, provides guidance for the location of biopsy and allows better monitoring of therapeutic response.

Keywords: chromoblastomycosis; dermatoscopic patterns; Cladophialophora carrionii.