Papulosquamous Disorders : Types and Treatment - NEET PG Dermatology
Feb 13, 2023
Papulosquamous disorders are a group of skin conditions characterized by the presence of papules and/or scaly patches on the skin. They are considered an important topic for the NEET PG exam.
There are several types of papulosquamous disorders, including psoriasis, pityriasis rosea, seborrheic dermatitis, and others. Each type of papulosquamous disorder has its own set of clinical features, causes, and treatments.
Skin lesions have a reticulate pattern k/a Wickham's striae.
Associated with HCV
Isomorphic/ Koebner's phenomenon seen
Isomorphic/ Koebner's phenomenon
TRUE
FALSE
Immune mediated
Autoinoculation
Example
Lichen planus
Psoriasis
Vitiligo
Example
Molluscum contagiosum
Viral warts
Histology
Basal cell degeneration
Civatte/colloid bodies seen
Saw toothed appearance
Max-Joseph space
Thickening of stratum granulosum (wedge shaped Hypergranulosis)
Thickening of stratum spinosum (Irregular Acanthosis)
Treatment
Steroids (topical/systemic/intralesional)
Generalized cases - phototherapy
PITYRIASIS ROSEA
Associated with HHV 6 & 7
1stpatch is k/a Herald/Mother patch
Lesions - Fir tree pattern seen on trunk
Common in females
Self-limiting
Cigarette paper scales/collarette of scale seen
Hanging curtain sign seen
Previous Year Questions
Q. Psoriatic plaques responded to steroids but on withdrawal, the following presentation occurred. Diagnosis? (AIIMS NOV 2019)
Staph infection
Pustular dermatosis
Pustular psoriasis
Sub-corneal pustulosis
Q. Auspitz sign seen in? (FMGE August 2020)
Pemphigus vulgaris
Psoriasis vulgaris
Pustular psoriasis
DLE
Q. Patient suffering from chronic plaque psoriasis with >50% of BSA involved, which of the following is not used in the treatment? (INICET Nov 2020)
NB UVB
Coal tar
Cyclosporine
Prednisolone
Q. Which is a true association? (AIIMS NOV 2019)
Lichen planus and malignant melanoma
Melasma and malignant melanoma
Psoriasis and metabolic syndrome
Vitiligo and metabolic syndrome
Q. A lady with bilateral buccal involvement having lacy white pattern, unable to scrape the white. Pain increases on spicy food intake. There is no history of tobacco but having history of amalgam dental filling on 3rd molar tooth. The likely diagnosis is? (FMGE June 2021)
Lichen planus
Erythroleukoplakia
Leukoplakia
Candida
Q. Identify the phenomenon shown in the image? (NEET PG Jan 2020)
Isomorphic phenomenon
Reverse isomorphic
Gottron papules
Nikolsky sign
Q. Max Joseph Space is a histopathological feature? (JIPMER MAY 2019)
Psoriasis vulgaris
Lichen planus
Pityriasis rosea
Parapsoriasis
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