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Psoriatic plaque, showing a silvery center surrounded by a reddened border. Psoriasis vulgaris (also known as chronic stationary psoriasis or plaque-like psoriasis) is the most common form and affects 85–90% of people with psoriasis. [13] Plaque psoriasis typically appears as raised areas of inflamed skin covered with silvery-white, scaly ...
Three stages characterize the evolution of necrolytic acral erythema lesions: early, well-developed, and late. Scaly, erythematous papules or plaques with a distinctively dark or worn center first emerge. When the lesions reach a well-developed stage, they combine to create a thick, hyperpigmented plaque that is clearly defined and has adhering ...
Discoid lupus erythematosus is the most common type of chronic cutaneous lupus (CCLE), an autoimmune skin condition on the lupus erythematosus spectrum of illnesses. [1] [2] It presents with red, painful, inflamed and coin-shaped patches of skin with a scaly and crusty appearance, most often on the scalp, cheeks, and ears.
Psoriasis is a common, chronic, and recurrent inflammatory disease of the skin characterized by circumscribed, erythematous, dry, scaling plaques. [ 97 ] [ 98 ] [ 99 ] Psoriasis vulgaris
PLC presents with a far slower clinical course than both febrile ulceronecrotic Mucha-Habermann disease and PLEVA. Similar to PLC, the lesion begins as an erythematous papule that turns reddish-brown and is easily detached to reveal a shiny, pinkish-brown surface. The lesion also has a centrally adherent micaceous scale.
It can be caused by infection, massage, electrical treatment, acne medication, allergies, exercise, solar radiation (), photosensitization, [3] acute radiation syndrome, mercury toxicity, blister agents, [4] niacin administration, [5] or waxing and tweezing of the hairs—any of which can cause the affected capillaries to dilate, resulting in redness.
Parakeratosis is seen in the plaques of psoriasis and in dandruff. Granular parakeratosis (originally termed axillary granular parakeratosis) is an idiopathic, benign, nondisabling cutaneous disease that manifests with intertriginous erythematous, brown or red, scaly or keratotic papules and plaques. It presents in all age groups and has no ...
Traditionally, mycosis fungoides has been divided into three stages: premycotic, mycotic and tumorous. The premycotic stage clinically presents as an erythematous (red), itchy, scaly lesion. Microscopic appearance is non-diagnostic and represented by chronic nonspecific dermatosis associated with psoriasiform changes in epidermis.