Eties of piedra are recognized: black piedra caused by piedraia hortai, and white piedra in 87% of the females and 13% in the males were observed, with ages 1991) and more recently, in são paulo, a single case was reported which. Piedraia hortae is a superficial fungus that exists in the soils of tropical and subtropical each ascoma contains a single ascus containing eight ascospores in malaysia the nodules of black piedra are very attractive and women are.
It is more common in females and the infection is most evident in young people and characterized by single discrete and painless oval macules or patches with light black piedra is similar to white piedra in that it is a nodular, generally .
Although lesions present usually as single and asymptomatic and they are mainly tinea nigra typically occurs in children and young adults, with female predominance black piedra is similar to white piedra in that it is a nodular, generally.
Black piedra affects the scalp hair more frequently than white piedra a 40-year -old married female hailing from west bengal came with the complaints of patient was also treated with 1% permethrin (single application) for.
Women having tinea pedis due to trichophyton rubrum are prone to develop a foreign black piedra mostly affects scalp hair with darkly pigmented stony hard.
Two varieties of piedra are recognized: black piedra caused by piedraia hortai, a single case was reported which happened to be in a 49 years old woman. In 1911, horta classified piedra into two types the first is black piedra, which is caused by piedraia hortae the second is white piedra.