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  2. Acrocyanosis - Wikipedia

    en.wikipedia.org/wiki/Acrocyanosis

    There are also a number of other conditions that affect hands, feet, and parts of the face with associated skin color changes that need to be differentiated from acrocyanosis: Raynaud phenomenon, pernio, acrorygosis, erythromelalgia, and blue finger syndrome. The diagnosis may be challenging in some cases, especially when these syndromes co-exist.

  3. Flammer syndrome - Wikipedia

    en.wikipedia.org/wiki/Flammer_syndrome

    The diagnosis of Flammer syndrome is primarily based on the patient's history with its typical features as well as the findings of nail fold capillaroscopy. This test shows an excessive constriction (narrowing) in the smallest blood vessels (capillaries) of the fingers in response to being exposed to cold.

  4. Bruise - Wikipedia

    en.wikipedia.org/wiki/Bruise

    Bruise colors vary from red, blue, or almost black, depending on the severity of broken capillaries or blood vessels within the bruise site. Broken venules or arterioles often result in a deep blue or dark red bruise, respectively. Darker colored bruises may result from a more severe bleeding from both blood vessels.

  5. Erythromelalgia - Wikipedia

    en.wikipedia.org/wiki/Erythromelalgia

    Erythromelalgia, or Mitchell's disease (after Silas Weir Mitchell), is a rare vascular peripheral pain disorder in which blood vessels, usually in the lower extremities or hands, are episodically blocked (frequently on and off daily), then become hyperemic and inflamed. There is severe burning pain (in the small fiber sensory nerves) and skin ...

  6. Capillary leak syndrome - Wikipedia

    en.wikipedia.org/wiki/Capillary_leak_syndrome

    The abdomen, the central nervous system, and the organs (including the lungs) are typically spared, but the extravasation in the extremities is sufficiently massive to cause circulatory shock and compartment syndromes, with a dangerous hypotension (low blood pressure), hemoconcentration (thickening of the blood) and hypoalbuminemia (drop in ...

  7. Schamberg disease - Wikipedia

    en.wikipedia.org/wiki/Schamberg_disease

    Schamberg's disease is a skin disorder that causes a discoloration of the lower extremities. [4] It usually occurs in the lower extremities and rarely elsewhere. [4] This condition is caused by leaky blood vessels near the surface of the skin. [7] The cause of the leaky capillaries is usually not known. [7]

  8. Capillary - Wikipedia

    en.wikipedia.org/wiki/Capillary

    Continuous capillaries can be further divided into two subtypes: Those with numerous transport vesicles, which are found primarily in skeletal muscles, fingers, gonads, and skin. [10] Those with few vesicles, which are primarily found in the central nervous system. These capillaries are a constituent of the blood–brain barrier. [8]

  9. Compartment syndrome - Wikipedia

    en.wikipedia.org/wiki/Compartment_syndrome

    [5] [43] This causes blood to back up. [5] Excess fluid leaks from the capillaries into the spaces between the soft tissue's cells. [44] This swells the extracellular space and raises the pressure in the compartment. [5] [7] The swelling of the soft tissues around the blood vessels compresses the blood and lymphatic vessels.