48,460
edits
Difference between revisions of "Pityriasis rubra pilaris"
Jump to navigation
Jump to search
Pityriasis rubra pilaris (view source)
Revision as of 04:40, 30 September 2014
, 04:40, 30 September 2014no edit summary
| Line 7: | Line 7: | ||
| Micro = alterating [[orthokeratosis]] and [[parakeratosis]] (known as "checkerboard pattern"), marked uniform [[acanthosis]] with broad dermal papillae and broad epidermal ridges, , +/-eosinophils (common), follicular plugging, scattered foci of [[acantholysis]] (common), occasional mild spongiosis | | Micro = alterating [[orthokeratosis]] and [[parakeratosis]] (known as "checkerboard pattern"), marked uniform [[acanthosis]] with broad dermal papillae and broad epidermal ridges, , +/-eosinophils (common), follicular plugging, scattered foci of [[acantholysis]] (common), occasional mild spongiosis | ||
| Subtypes = | | Subtypes = | ||
| LMDDx = [[Dermatomycosis|fungal infection]], | | LMDDx = [[Dermatomycosis|fungal infection]], [[psoriasis]], [[Darier disease]], [[seborrhoeic dermatitis]] | ||
| Stains = PASD -ve (to r/o fungal infections) | | Stains = PASD -ve (to r/o fungal infections) | ||
| IHC = | | IHC = | ||
| Line 18: | Line 18: | ||
| Assdx = HIV infection - recalcitrant PRP | | Assdx = HIV infection - recalcitrant PRP | ||
| Syndromes = | | Syndromes = | ||
| Clinicalhx = Classic adult - self-limited exfoliative, erythematous dermatitis that starts over the head and neck and extends downwards forming orange plaques with spared islands of normal skin, follicular hyperkeratosis, palmar involvement with orange hyperkeratosis | | Clinicalhx = Classic adult - self-limited exfoliative, erythematous dermatitis that starts over the head and neck and extends downwards forming orange plaques with spared islands of normal skin, follicular hyperkeratosis, palmar involvement with orange hyperkeratosis | ||
| Signs = | | Signs = | ||
| Symptoms = | | Symptoms = | ||
| Line 63: | Line 63: | ||
==Associated Diagnoses== | ==Associated Diagnoses== | ||
*HIV infection - recalcitrant PRP | *[[HIV infection]] - recalcitrant PRP. | ||
===Images=== | ===Images=== | ||
| Line 83: | Line 83: | ||
[[Category:Diagnosis]] | [[Category:Diagnosis]] | ||
[[Category:Dermatopathology]] | |||