These clinical features reflect the histopathological findings observed in active lesions, characterized by parakeratosis, acanthosis of. The clinical diagnosis of psoriasis is relatively easy, especially when the lesions consist of erythematous, silvery white scaly, sharply demarcated, indurated plaques, distributed symmetrically on the extensor surfaces of limbs, the lower back and the scalp. Pdf the clinical diagnosis of psoriasis is relatively easy, especially when the lesions consist of erythematous, silvery white scaly, sharply. Although the differential diagnosis of psoriasis is broad, its identification can be made by means of careful anamnesis and physical examination in the vast majority of cases. The differentiation from eczema and other erythematosquamous eruptions is of importance. These variants to 6 can be differentiated from the common plaque type by morphology. Pathogenesis, clinical manifestations, and diagnosis view in chinese with pustular psoriasis. The pasi score is the psoriasis area and severity index, and is mainly used for evaluating the effect of interventions in clinical trials. Psoriasis, which manifests most often as plaque psoriasis, is a chronic, relapsing, inflammatory skin disorder with a strong genetic basis. The differential diagnosis of psoriasis vulgaris hilaris publishing. Guttate psoriasis pinpoint to 1cm scaling papules and plaques on trunk and. Differential diagnosis of psoriasis should be performed with all inflammatory fungal, viral or bacterial skin diseases, as well as having a number of identical characteristics of neoplastic pathologies. Differential diagnosis of psoriasis should be done with all bacterialviral diseases, tumors, precancerous lesions, mycosis fungoides, subacute.
Plaque psoriasis see the image below is rarely life threatening, but it often is intractable to treatment. Pustular psoriasis is a form of psoriasis that can have lifethreatening pustular psoriasis. Table 1 summarizes clinical patterns that are helpful in the diagnosis of polyarticular arthritis. Common conditions that may present like unstable psoriasis include eczema and tinea incognito. Histological differential diagnosis between psoriasis. Pdf differential diagnosis of psoriasis researchgate.
Pustular psoriasis is an uncommon form of psoriasis consisting of widespread pustules on an erythematous background, as shown in the image below. Differential diagnosis of systemic lupus erythematosus. The differential diagnosis is vast and includes many other immunemediated, inflammatory disorders. In general the diagnosis psoriasis can be made on clinical grounds. Differential diagnosis of psoriasis should be done with all bacterialviral diseases, tumors, precancerous lesions, mycosis fungoides, subacute lupus erythematosus, allergic. Less common variants of psoriasis include inverse psoriasis, pustular psoriasis, guttate psoriasis, erythrodermic psoriasis. Discoid dermatitis more itch, vesicles, dry rather than platescale. We calculated incidence rates irs and estimated ir ratios adjusted for potential confounders using poisson regression.
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