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Focal, usually mild, spongiosis with overlying scale crust, with a few neutrophils; The crust is often centered on a follicle; The papillary dermis is generally mildly edematous; Dilated blood vessels in the superficial vascular plexus; Mild superficial perivascular infiltrate of lymphocytes, histiocytes and occasional neutrophils.
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]
The dermis contains two vascular networks that run parallel to the skin surface—one superficial and one deep plexus—which are connected by vertical communicating vessels. [ 21 ] [ 25 ] The function of blood vessels within the dermis is fourfold: to supply nutrition, to regulate temperature, to modulate inflammation, and to participate in ...
By histopathology, superficial dermatitis (in the epidermis, papillary dermis, and superficial vascular plexus) can basically be classified into either of the following groups: [41] Vesiculobullous lesions; Pustular dermatosis; Non vesiculobullous, non-pustular; With epidermal changes; Without epidermal changes.
Chronic venous insufficiency (CVI) is a medical condition characterized by blood pooling in the veins, leading to increased pressure and strain on the vein walls. [1] The most common cause of CVI is superficial venous reflux, which often results in the formation of varicose veins, a treatable condition. [2]
The dermis contains two vascular networks that run parallel to the skin surface—one superficial and one deep plexus—which are connected by vertical communicating vessels. [8] [11] The function of blood vessels within the dermis is fourfold: to supply nutrition, to regulate temperature, to modulate inflammation, and to participate in wound ...
Superficial thrombophlebitis is due to inflammation and/or thrombosis, and,less commonly, infection of the vein. It is generally a benign, self-limiting disorder; however, it can be complicated by deep vein thrombosis (DVT) and even pulmonary embolism (PE) [ 4 ] Migratory superficial thrombophlebitis is known as Trousseau's syndrome , which can ...
In vertebrates, a venous plexus is a normal congregation anywhere in the body of multiple veins. [1] A list of venous plexuses: This list is incomplete; ...