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pɪˈtiːkɪə. Specialty. Rheumatology. A petechia (/ pɪˈtiːkiə /; [1] pl.: petechiae) is a small red or purple spot (≤4 mm in diameter) that can appear on the skin, conjunctiva, retina, and mucous membranes which is caused by haemorrhage of capillaries. [2][3] The word is derived from Italian petecchia ' freckle ', of obscure origin. [1]
Specialty. Dermatology, hematology. Purpura (/ ˈpɜːrpjʊərə / [1]) 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, or other causes. [2]
Schamberg's disease, or progressive pigmented purpuric dermatosis, is a chronic discoloration of the skin which usually affects the legs and often spreads slowly. This disease is more common in males and may occur at any age from childhood onward. This condition is observed worldwide and has nothing to do with race or ethnic background.
The rash might not be anything to worry about, but it could be a sign of a serious allergic reaction, especially if combined with difficulty breathing. Treatment: Contact your doctor immediately ...
Ovarian cysts: Ovarian cysts are sacs filled with fluid or tissue on the ovaries. Most cysts are benign but some can be cancerous. If an ovarian cyst ruptures, it can cause bleeding and blood ...
Palpable purpura is the clinical manifestation of leukocytoclastic vasculitis, which can be idiopathic or linked to sepsis, reactions to drugs, connective tissue diseases, cryoglobulinemia, hepatitis C or B infection, or underlying cancers. Children and young adults can develop Henoch-Schönlein purpura, a leukocytoclastic vasculitis that is ...
Poison Ivy rash and blisters on a leg (Alamy) 6. Purple spots on your hands and feet. These could be a sign of a bacterial infection of the heart, Kroshinsky said. 7. A circular-shaped rash in an ...
Giant platelet disorders, also known as macrothrombocytopenia, are rare disorders featuring abnormally large platelets, thrombocytopenia and a tendency to bleeding. Giant platelets cannot stick adequately to injured blood vessel walls, resulting in abnormal bleeding when injured. Giant platelet disorder occurs for inherited diseases like ...