Black Fungus Palm

The fungus Cladosporium werneckii often causes palm black fungus (tinea nigra palnaris).
Tinea nigra palmaris (tinea nigra palmaris) appears everywhere in the world, and is found in tropical regions like South Africa and Southeast Asia. This disease is also known as black-hand fungus with scientific names such as keratomycosis nigricans palmaris, pityriasis nigra, microsporum nigra, etc. land.
The fungus Cladosporium werneckii is also known as the fungus Exophiala werneckii

. This is a saprophytic fungus, often present in soil, manure, humus, on wood .. in tropical and subtropical regions.



Fungi can get into the skin through scratches.
The lesions caused by this fungus usually appear in the hands, forming dark, flat, dark, flaky, no red scales, no infiltration. The lesions are slow to develop, less annoying to the patient but only unsightly because they have black palms.
Diagnosis based on direct test results by scraping the skin and scanning in 20% KOH solution under a microscope will observe the zigzag, branching, fungal hyphae near each other, black , diameters up to 5 µm; Especially some fibers have spores.
Pathological surgery can also see black, baffled hyphae. In addition, mushrooms can also be cultured in Sabouraud medium at a temperature of 30oC, after 7 to 10 days to see mushrooms grow. Mushroom colonies are initially white, gray, or olive, but quickly turn dark blue, black At first, colonies were like yeast colonies; after 1 to 2 weeks with a diameter of 1 to 2 cm and in the form of fibers.




Treatment of black fungus can use topical drugs such as 3% salicylic acid, iodine alcohol, benzosali fat, 20% to 30% natrithiosulfate solution; Whitfield’s (benzoic acid compound) or imidazole twice daily. Use continuously for 3 to 4 weeks so the fungus can be killed..

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