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Prurigo nodularis (PN), also known as nodular prurigo, is a skin disorder characterized by pruritic (), nodular lesions, which commonly appear on the trunk, arms and legs. [1]
A papule can be flesh colored, yellow, white, brown, black, blue or purplish, or varying shades of red. [4] [6] The intensity of redness might indicate how long the papule has been present. [6] There may be just one or many, and they may occur irregularly in different parts of the body or appear in clusters. [2] It may progress to a pustule or ...
Signs and symptoms [ edit ] They appear as small, painless, raised, pale, red or white spots or bumps 1 to 3 mm in diameter that may appear on the scrotum, shaft of the penis , or on the labia , as well as the inner surface (retromolar mucosa) and vermilion border of the lips of the face .
Fibrous papule of the nose is a harmless small bump on or near the nose. It is typically dome-shaped, skin-colored, white or reddish, smooth and firm. [1] [2] Less frequently it can occur elsewhere on the face. [3] Sometimes there are a few. [1] It may be shiny and remains unchanged for life. There may be a central hair. [3]
The exact positions of the lesions and findings on histopathology using alcian blue stain aid in the diagnosis. APPM should be distinguished from the discrete papular form of lichen myxedematosus (DPLM), which is considered another subtype of lichen myxedematosus. [6] Papules in DPLM can affect any part of the body, typically in an asymmetrical ...
Piezogenic papules; Other names: Painful fat herniation, piezogenic pedal papules [1] Piezogenic papules on the heel of an individual with Ehlers–Danlos syndrome. Specialty: Dermatology: Symptoms: Multiple yellowish to skin-coloured small or large bumps, mostly painless; typically on heels and wrist [2] [3] Causes: Pressure [2] Risk factors
A venous lake (also known as phlebectasis [1]) is a generally solitary, soft, compressible, dark blue to violaceous, 0.2- to 1-cm papule commonly found on sun-exposed surfaces of the vermilion border of the lip, face and ears. [2] [3] [4] Lesions generally occur among the elderly. [5] [6]
Histopathological image of dyshidrotic dermatitis, showing focal spongiotic change in the epidermis. Spongiosis is mainly intercellular [1] edema (abnormal accumulation of fluid) in the epidermis, [2] and is characteristic of eczematous dermatitis, manifested clinically by intraepidermal vesicles (fluid-containing spaces), "juicy" papules, and/or lichenification. [3]