Pigmented purpuric dermatosis refers to one of the three major classes of skin conditions characterized by
purpuric
Purpura () is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin secondary to platelet disorders, vascular disorders, coagulation disorders, ...
skin eruptions.
Pigmented purpuric dermatosis are distinguished from other
purpura
Purpura () is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin secondary to platelet disorders, vascular disorders, coagulation disorders, ...
by size (0.3–1 cm) and are most often seen in the lower extremities.
Pigmentary purpuric eruptions may present with one of several clinical patterns. There may be overlapping characteristics among pigmented purpuric dermatosis and between their signs and those of other
purpuric
Purpura () is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin secondary to platelet disorders, vascular disorders, coagulation disorders, ...
eruptions.
Examples of the pigmented purpuric dermatosis group include:
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Schamberg's disease
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Majocchi's disease (Purpura annularis telangiectodes)
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Gougerot-Blum syndrome (Pigmented purpuric lichenoid dermatitis)
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Ducas and Kapetanakis pigmented purpura
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Lichen aureus
Although vascular damage may be present, it is insufficient for these conditions to be considered forms of
vasculitis
Vasculitis is a group of disorders that destroy blood vessels by inflammation. Both arteries and veins are affected. Lymphangitis (inflammation of lymphatic vessels) is sometimes considered a type of vasculitis. Vasculitis is primarily caused ...
.
A few very small non-blinded studies of treatment with narrow-band ultraviolet light have been reported as promising.
[Summarized in 2015 by Tapan Kumar Dhali, Monica Chahar, and Mohammad Asad Haroon in]
Phototherapy as an effective treatment for Majocchi's disease - Case report
An Bras Dermatol. 2015 Jan-Feb; 90(1): 96–99.
See also
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Purpura
Purpura () is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin secondary to platelet disorders, vascular disorders, coagulation disorders, ...
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Skin lesion
A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, nails, and related muscle and glands. The major function of th ...
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List of cutaneous conditions
Many skin conditions affect the human integumentary system—the organ system covering the entire surface of the body and composed of skin, hair, nails, and related muscle and glands. The major function of this system is as a barrier agai ...
References
External links
Vascular-related cutaneous conditions
{{Cutaneous-condition-stub