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Lipedema- Definition, Causes and Treatment

Definition Lipedema is a condition that mostly affects women and is characterized by a symmetrical swelling in the legs, thighs, and buttocks and sometimes the arms due to the deposits of fat beneath the skin. It is rare in men. Lipedema can be extremely painful. The affected areas can be tender …

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Leukocytosis – Causes, Symptoms and Treatment

Definition Leucocytosis is the condition in which the body has a higher level (more than 11,000 leukocytes per cubic mm of adult human blood) of white blood cells (WBC) than normal level. White blood cells play an important role in the body immune system. White blood cells will function as …

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Leprosy: Causes, Complications and Medications.

What is leprosy? Leprosy, also known as Hansen’s disease (HD), is a chronic infectious disease caused by a Mycobacterium (Mycobacterium leprae) affecting especially the skin and marginal nerves. It is characterized by the formation of nodules or macules that enlarge and spread with loss of sensation and eventually paralysis, wasting …

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Lassa fever: Symptoms, Causes, Treatment and Prevention

Definition Lassa fever is an acute viral hemorrhagic illness caused by the lassa virus, a member of the arenavirus family of viruses. It is transmitted to humans from contacts with food or household items contaminated with rodent excreta. The disease is endemic in the rodent population in parts of west …

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Listeriosis (Listeria infection): Definition, Symptoms, Causes, Treatment and Prevention

Definition Listeriosis is an infection caused by a gram stain-positive motile bacterium named Listeria monocytogenes. The foodborne illness produces fever, muscle aches, and, in many people, diarrhea. Severe infections can cause headaches, meningitis, convulsions, and death. Most healthy people exposed to the bacteria have minor or no symptoms, but a …

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Leukemia: History, Causes, Symptoms, Treatment And Prevention

Definition Leukemia is a malignancy (cancer) of blood cells. In leukemia, abnormal blood cells are produced in the bone marrow. Usually, leukemia involves the production of abnormal white blood cells the cells responsible for fighting infection. However, the abnormal cells in leukemia do not function in the same way as …

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Laryngitis: Causes, Symptoms, Treatment and Prevention

Definition Laryngitis is inflammation in and around the mucus membranes of the larynx or voice box. The irritated larynx becomes swollen and painful, leading to a sore throat, hoarse voice and even a complete loss of voice. Most cases of laryngitis are caused by an infection. Epidemiology Accurate figures regarding …

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Liver cancer: Definition, Symptoms, Treatment and Prevention

Definition Primary liver cancer is a condition that happens when normal cells in the liver become abnormal in appearance and behavior. The cancer cells can then become destructive to adjacent normal tissues, and can spread both to other areas of the liver and to organs outside the liver. Malignant or …

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Lyme disease: Causes, Symptoms and Treatment

Definition Lyme disease is caused by a bacteria, Borrelia burgdorferi, that’s transmitted to humans through a bite from an infected black-legged or deer tick. Symptoms can occur anywhere from 3 to 30 days after the bite, and symptoms can be wide-ranging, depending on the stage of the infection. Lyme disease …

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Legionnaire’s Disease : Symptoms and Treatments

Definition A disease due to the bacteria Legionella pneumophila found in plumbing systems, shower heads and water-storage tanks. Outbreaks of Legionella pneumonia have been attributed to air conditioning systems and hot water tubs but cannot be transmitted from person to person. The bacteria flourish at temperature between 90 and 105°C. …

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Leishmaniasis : Causes, Symptoms, Treatment and Prevention

Introduction Leishmaniasis is a parasitic disease caused by the Leishmania parasite. This parasite typically lives in infected sand flies. You can contract it from a bite of an infected sand fly. The sand flies that carry the parasite typically reside in tropical and subtropical environments. There are several different forms …

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