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Real Doctors (Life Makers)  |  Basic Science  |  Pathology  |  some skin lesions « previous next »
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Author Topic: some skin lesions  (Read 4097 times)
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some skin lesions
« on: /October/ 01, 2005, 06:58:31 PM »


some of medical words we faces every day and we need to know it well because we need it in our study and also to determine the desiease skin spots


- Petechiae are pinpoint-sized hemorrhages of small capillaries in the skin or mucous membranes.

- Petechiae result from tiny areas of superficial bleeding into the skin. They appear as round, pinpoint-sized dots that are not raised. The color varies from red to blue or purple as they age and gradually disappear. Petechiae commonly appear on the lower legs, but may be distributed all over the body.

causes of petechia.

There are many possible causes of petechiae. Common causes include:
?? injury or trauma
?? allergic reactions to medications
?? autoimmune disorders, which are conditions in which the person's body creates antibodies to its own tissues for unknown reasons
?? liver disorders, such as cirrhosis
?? infections, such as mononucleosis and endocarditis
?? bone marrow disorders, such as leukemia
?? thrombocytopenia, a deficiency of platelets
?? nutritional deficiencies, such as a deficiency in vitamins C, K, or B12, or folic acid
?? medications, such as blood thinners
?? recent blood transfusions
?? medical treatment, such as radiation therapy and chemotherapy for cancer
?? birth, due to the pressure changes caused by vaginal delivery
?? aging skin
?? sepsis, or blood infection
?? violent vomiting or coughing There may be other causes of petechiae.

to avoid it :-

It is not always possible to avoid petechiae. Avoiding trauma will help prevent petechiae caused by injury. If allergy to a medication is the cause, avoiding the medication will help prevent the condition. Prompt treatment of infections will help prevent sepsis

to be cont.........................

Motaz Hatata
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Posts: 32

Re: some skin lesions
« Reply #1 on: /October/ 19, 2005, 04:23:30 PM »

this is a nice subject Dr shaimaa
keep on it
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