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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. [12] Plaque psoriasis typically appears as raised areas of inflamed skin covered with silvery-white, scaly ...
Sweet syndrome (SS), or acute febrile neutrophilic dermatosis, [1] [2] is a skin disease characterized by the sudden onset of fever, an elevated white blood cell count, and tender, red, well-demarcated papules and plaques that show dense infiltrates by neutrophil granulocytes on histologic examination.
Psoriatic erythroderma can be congenital or secondary to an environmental trigger. [12] [13] [14] Environmental triggers that have been documented include sunburn, skin trauma, psychological stress, systemic illness, alcoholism, drug exposure, chemical exposure (e.g., topical tar, computed tomography contrast material), and the sudden cessation of medication.
Annular erythema of infancy (AEI) consists of self-limited eruptions of erythematous, annular to polycyclic patches and plaques. It is an idiopathic figurate erythema. [1] Over several days, a single lesion disappears without leaving behind any scale or hyperpigmentation. Mostly affecting the trunk, face, and extremities, this rash has no symptoms.
The hallmarks of lupus pernio are violaceous or erythematous, indurated plaques that are mostly found on the cheeks and nose in the center of the face. Rarely, lesions may also affect the dorsum of the hands and feet and the ears. [3] The symptoms of lupus pernio range from a few tiny nodules on the nose to vibrant plaques that cover both ...
Papules and plaques of tumid lupus erythematosus can create an annular pattern in certain patients, resembling annular subacute cutaneous lupus erythematosus (SCLE), with less edema at the center. A Blaschkoid distribution, [ 9 ] [ 10 ] scalp involvement resembling alopecia areata , [ 11 ] and periorbital edema are less frequent signs of tumid ...
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 ...
Psoriasis is a common, chronic, and recurrent inflammatory disease of the skin characterized by circumscribed, erythematous, dry, scaling plaques. [ 97 ] [ 98 ] [ 99 ] Psoriasis vulgaris