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    Bilateral Tinea Nigra Plantaris with Good Response to Isoconazole Cream: A Case Report.
    Case Rep Dermatol 2015 Sep-Dec;7(3):306-10. Epub 2015 Oct 28.
    Sector of Dermatology, University Hospital and School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
    Tinea nigra is a superficial fungal infection caused by Hortaea werneckii. It typically affects young individuals as an asymptomatic unilateral macule, from light brown to black on the palms and soles, mainly in tropical and subtropical regions. In 1997, Gupta et al. [Br J Dermatol 1997;137:483-484] described the dermoscopic characteristics of tinea nigra. Topical antifungals with or without keratolytic agents can be used for the treatment. The authors report a case of a 47-year-old man with asymptomatic light brown macules bilaterally on the plantar regions. Dermoscopic examination revealed brownish spicules consistent with the pattern described in the literature. Treatment with isoconazole cream was effective with complete resolution.

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    Tinea nigra by Hortaea werneckii, a report of 22 cases from Mexico.
    Stud Mycol 2008 ;61:77-82
    Department of Mycology, Hospital General de México, Sánchez Azcona 317-202, Col del Valle, México D.F. CP 03020, Mexico.
    Tinea nigra is a superficial mycosis caused by Hortaea werneckii. It is an infrequent asymptomatic infection that affects human palms and soles, and is mostly observed in tropical countries. We evaluate retrospectively twenty-two confirmed cases of tinea nigra from a total of eleven yr (1997-2007) and discuss the epidemiology, clinical features and treatment of this disease. Read More
    [Tinea nigra: a allochthonous case report in Chile].
    Rev Chilena Infectol 2013 Feb;30(1):90-3
    Servicio de Dermatología, Clínica Alemana de Santiago, Chile.
    Tinea nigra is a superficial mycosis caused by Hortaea werneckii. It is an infrequent asymptomatic infection that affects mainly human palms and soles, and it is mostly seen in tropical countries. It has not been reported in Chile yet. Read More
    Tinea nigra showing a parallel ridge pattern on dermoscopy.
    J Dermatol 2015 May 13;42(5):518-20. Epub 2015 Mar 13.
    Noguchi Dermatology Clinic, Kumamoto, Japan; Department of Immunology, Allergy & Vascular Biology, Kumamoto University, Kumamoto, Japan.
    An 18-year-old healthy female student noticed a brown macule measuring 21 mm in diameter on the left palm and visited our clinic concerned about a cancerous mole. Dermoscopic examination revealed a brown, fine-dotted and granule-like structure overlapping an amorphous light brown macule. However, unlike previous cases, analysis of the high dynamic range-converted image revealed the parallel ridge pattern frequently observed in malignant melanomas. Read More
    Scanning electron microscopy of tinea nigra.
    An Bras Dermatol 2014 Mar-Apr;89(2):334-6
    Federal University of Pelotas, Pelotas, RS, Brazil.
    Tinea nigra is a rare superficial mycosis caused by Hortaea werneckii. This infection presents as asymptomatic brown to black maculae mostly in palmo-plantar regions. We performed scanning electron microscopy of a superficial shaving of a tinea nigra lesion. Read More