Related Experiment Video
Updated: Jun 14, 2026

Induction of Petite Colonies in Candida glabrate via Rose Bengal-Mediated Photodynamic Therapy
Published on: March 29, 2024
Tinea versicolor, tinea nigra, white piedra, and black piedra
Alexandro Bonifaz1, Fernando Gómez-Daza, Vanessa Paredes
1Dermatology Service and Mycology Department, General Hospital of Mexico DO, Dr. Balmis 148, Colonia Doctores México DF, 06720, Mexico. a_bonifaz@yahoo.com.mx
Abstract:
Superficial mycoses are fungal infections limited to the stratum corneum and its adnexal structures. The most frequent types are dermatophytoses or tineas. Tinea versicolor involves the skin in the form of hypochromic or hyperchromic plaques, and tinea nigra affects the skin of the palms with dark plaques. White piedra and black piedra are parasitic infections of scalp hairs in the form of concretions caused by fungal growth. Diagnosis of these mycoses is made from mycologic studies, direct examination, stains, and isolation, and identification of the fungi. Treatment includes systemic antifungals, topical antifungals, and keratolytics.
Related Concept Videos
Skin Diseases and Disorders
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Candidiasis
Pigmentation
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Changes in Skin Color: Clinical Perspectives
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
Leishmaniasis
