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WHAT IS YOUR DIAGNOSIS? • An. Bras. Dermatol. 96 (05) • 2021 • https://doi.org/10.1016/j.abd.2021.03.004   copy

Case for diagnosis. Ulcer and papular lesions in a patient with diabetes mellitus. Protothecosis☆ ☆ How to cite this article: Góes LDM, Monteiro VS, Souza ATO. Case for Diagnosis. Ulcer and papular lesions in a patient with diabetes mellitus. Protothecosis. An Bras Dermatol. 2021;96:613-6. ,☆☆ ☆☆ Study conducted at the Fundação de Dermatologia Tropical e Venereologia Alfredo da Matta, Manaus, AM, Brazil.

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Abstract

Protothecosis is a rare disease caused by achlorophilic algae of the genus Prototheca spp. In general, three clinical forms are observed: cutaneous, articular and systemic. The cutaneous form is the most common one. This study describes a patient with isolated erythematous papules and erythematous papular plaques in the scapular regions, with a previous histopathological diagnosis of cryptococcosis. New tests were conclusive for the diagnosis of protothecosis, caused by Prototheca wickerhamii.

KEYWORDS
Infectious dermatoses; Opportunistic infections; Prototheca

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