Alopecia

Overview Alopecia means “loss of hair“. Hair grows in small clusters of 3-4 hairs per follicle unit. Hair grows through 3 phases. Follicles can move through this process and back again based on hormonal signalling. Normally, an individual loses about…

Pityriasis (Tinea) Versicolor

Pityriasis versicolor Pityriasis versicolor is a superficial fungal infection caused by Malassezia. It is often asymptomatic, except for the hypopigmented/hyperpigmented patches on the skin. Versicolor means “various colors”. Malassezia produces acetic acid which affects melanocyte function. Diagnosis is clinical, but…

Dermatophytosis (Tinea)

Dermatophyte infections are given different names depending on the location of the infection. The diagnosis is clinical. Deep infections (involving the hair and nails) are treated with oral antifungals. Dermatophytosis Area infected Term Common causative organism Foot Tinea pedis (Athletes…