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Related to pityriasis: pityriasis versicolor, pityriasis alba, tinea versicolor, Pityriasis lichenoides, pityriasis rubra pilaris, Pityriasis capitis


n. pl. pit·y·ri·a·ses (-sēz′)
Any of various skin diseases of humans and animals, characterized by epidermal shedding of flaky scales.

[Greek pitūriāsis, from pitūra, grain husks, bran, dandruff, perhaps from dissimilation of *putūra; see pau- in Indo-European roots, or akin to pitulos, repetitive striking; see pet- in Indo-European roots.]


1. (Pathology) any of a group of skin diseases characterized by the shedding of dry flakes of skin
2. (Veterinary Science) a similar skin disease of certain domestic animals
[C17: via New Latin from Greek pituriasis scurfiness, from pituron bran]


(ˌpɪt əˈraɪ ə sɪs)

any of several skin diseases marked by the shedding of branlike scales.
[1685–95; < New Latin < Greek pitȳríāsis branlike eruption =pítȳr(on) bran, scale + -iāsis -iasis]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pityriasis - any of several skin disorders characterized by shedding dry flakes of skinpityriasis - any of several skin disorders characterized by shedding dry flakes of skin
dermatosis - disorder involving lesions or eruptions of the skin (in which there is usually no inflammation)
dandruff - a condition in which white scales of dead skin are shed by the scalp
pityriasis alba - common form of pityriasis (usually in children or young adults) characterized by round patches of depigmentation
pityriasis rosea - pityriasis in which an itchy rash develops over the trunk and extremities


n pitiriasis f; — alba pitiriasis alba; — rosea pitiriasis rosada; — versicolor pitiriasis versicolor
References in periodicals archive ?
It could be: 6 A mild fungal infection of the skin called pityriasis rosea.
While CTCL is the biggie in the differential diagnosis of very-late-onset atopic dermatitis, other conditions that need to be considered include psoriasis, contact dermatitis, pityriasis rubra pilaris, and pityriasis rosea.
The symptoms on his face had been misdiagnosed as a skin infection called erysipelas, while his shoulder was treated as a rash called pityriasis versicolor.
Patches of dry, white skin can mean you have a skin condition called Pityriasis Alba.
Some differentials include pityriasis versicolor, freckles, lentigines, photopigmentation, lichen planus pigmentosus, Addison's disease, hemochromatosis, drug-induced, corn/calluses, seborrheic keratosis, psoriasis, hyperkeratotic eczema, tinea pedis, and many others.
This edition has new cases on sickle cell disease, rectal bleeding, juvenile idiopathic arthritis, primary syphilis, pityriasis rosacea, and congenital cataracts.
Mohs Micrographic Surgery; Pediculosis ('lice'); Photochemotherapy for the treatment of scleroderma, extracorporeal; Photodynamic therapy with aminolevulinic acid; Pityriasis rosea; Pityriasis versicolor;
pityriasis rosea), and 3) result of an infectious disease (e.
A differential diagnosis could be acute drug eruption, Gionotti Crosti or Pityriasis rubra pilaris.
The superficial and cutaneous mycoses conditions are Pityriasis versicolor, Seborrhoeic dermatitis, dandruff, Follicular pityriasis, Tinea nigra, White piedra, Black piedra and onychomycosis.
Best known and most frequent is pityriasis versicolor (PV) [4] a chronic and recurrent skin disease occurring primarily in hot and humid climates.
One case of Pityriasis Rosea, resistant to routine mode of treatment was seen, but no other literature mentions its association.