The Australasian affinities of pityriasis emphasize its zoogeographical peculiarities.
Eczema and psoriasis, pityriasis, impetigo, and porrigo decalvans are forms of skin eruption seen.
How is pityriasis rosea distinguished from ringworm, psoriasis and the squamous syphiloderm?
Since pityriasis is endemic to Borneo, it probably was detached from the parent stock at an early period.
pityriasis, a skin eruption attended with branlike desquamation.
pityriasis pit·y·ri·a·sis (pĭt'ĭ-rī'ə-sĭs)
n. pl. pit·y·ri·a·ses (-sēz')
Any of various skin diseases of humans and animals, characterized by epidermal shedding of flaky scales.