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Livedo reticularis is a common skin finding consisting of a mottled reticulated vascular pattern that appears as a lace-like purplish discoloration of the skin. [1] The discoloration is caused by reduction in blood flow through the arterioles that supply the cutaneous capillaries, resulting in deoxygenated blood showing as blue discoloration ().
Thrombophlebitis can develop along the arm, back, or neck veins, the leg is by far the most common site. When it occurs in the leg, the great saphenous vein is usually involved, although other locations are possible.
Keratosis pilaris (KP; also follicular keratosis, lichen pilaris, or colloquially chicken skin. [ 1 ] ) is a common, autosomal - dominant , genetic condition of the skin's hair follicles characterized by the appearance of possibly itchy , small, gooseflesh -like bumps, with varying degrees of reddening or inflammation. [ 2 ]
Typical purpura on lower leg More severe case of HSP on child's foot, leg, and arm. Purpura, arthritis, and abdominal pain are known as the "classic triad" of Henoch–Schönlein purpura. [5] Purpura occur in all cases, joint pains and arthritis in 80%, and abdominal pain in 62%.
An ecchymosis is a hematoma of the skin larger than 10 mm. [2] They may occur among and or within many areas such as skin and other organs , connective tissues , bone , joints and muscle . A collection of blood (or even a hemorrhage ) may be aggravated by anticoagulant medication (blood thinner).
Skin biopsy is a biopsy technique in which a skin lesion is removed to be sent to a pathologist to render a microscopic diagnosis. It is usually done under local anesthetic in a physician's office, and results are often available in 4 to 10 days.
There are intensely itchy spots on the central back, mid chest and occasionally elsewhere. Frequently, it follows sweating or some unexpected heat stress. The itchy eruption lasts an average of 10–12 months. It is characterized by papules and papulovesicles with excoriations occurring on the chest, back, lower sternum, arms, and thighs. [4]
Jessner lymphocytic infiltrate of the skin is a cutaneous condition characterized by a persistent papular and plaque-like skin eruption which can occur on the neck, face and back and may re-occur. This is an uncommon skin disease and is a benign collection of lymph cells. Its cause is not known and can be hereditary.