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Cavernoma

Cavernoma (also called cavernous angioma), vascular malformation intracranial with unique histological and imaging characteristics. They are quite common and frequently asymptomatic occasional findings on imaging studies; it is estimated that 4% of the population harbours this lesion. They appear as discrete, compact nodules of endothelial-lined sinusoidal vascular spaces, which contain essentially subacute to chronic clotted blood and are not infrequently multiple. They may range from 1 mm to several cm in diameter. They are congenital and may be familial; however, they may appear or manifest late in life, and may evolve and change in size as well as in appearance during life. If symptoms do occur, the clinical presentation may include seizures, haemorrhage, or progressive neurological deficit. The epileptic activity is thought to be due to the irritating effects of haemosiderin, gliosis, and compression on adjacent cortex. Haemorrhage is usually relatively limited to the proximity
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Leucemia - Información general

Leucemia - Información general ¿Qué es la leucemia? La leucemia es un cáncer de las células sanguíneas. Se inicia en la médula ósea, el tejido blando en el interior de la mayoría de los huesos. La médula ósea es donde las células sanguíneas. Cuando estás sano, la médula ósea produce: Las células blancas de la sangre que ayudan a su cuerpo a combatir infecciones. Los glóbulos rojos, que transportan oxígeno a todas las partes de su cuerpo. Plaquetas, que ayudan a coagular la sangre. Cuando usted tiene leucemia, la médula ósea comienza a producir una gran cantidad de glóbulos blancos anormales, llamadas células leucémicas. Ellos no hacen el trabajo normal de las células blancas de la sangre, crecen más rápido que las células normales, y no dejan de crecer cuando deberían. Con el tiempo, las células leucémicas pueden desplazar a las células normales de la sangre. Esto puede llevar a problemas graves como la anemia, sangrado e infecciones. Las células de leucemia también puede disemina
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Leukemia &Cancer - Overview

What is leukemia? Leukemia is cancer of the blood cells. It starts in the bone marrow, the soft tissue inside most bones. Bone marrow is where blood cells are made.  When you are healthy, your bone m noarrow makes: White blood cells, which help your body fight infection.  Red blood cells, which carry oxygen to all parts of your body.  Platelets, which help your blood clot. When you have leukemia, the bone marrow starts to make a lot of abnormal white blood cells, called leukemia cells. They don't do the work of normal white blood cells, they grow faster than normal cells, and they don't stop growing when they should.  Over time, leukemia cells can crowd out the normal blood cells. This can lead to serious problems such as anemia, bleeding, and infections. Leukemia cells can also spread to the lymph nodes or other organs and cause swelling or pain. Are there different types of leukemia? There are several different types of leukemia. In general, leukemia is groupe
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Symptoms of Rheumatoid Arthritis

Rheumatoid arthritis (RA) is a chronic (long-term) disease. Rheumatoid arthritis symptoms can come and go, and each person with RA is affected differently. Some people have long periods of remission. Their rheumatoid arthritis is inactive, and they have few or no symptoms during this time. Other people might have near-constant rheumatoid arthritis symptoms for months at a stretch. Although rheumatoid arthritis can involve different parts the body, joints are always affected. When the disease acts up, joints become inflamed. Inflammation is the body's natural response to infection or other threats, but in rheumatoid arthritis inflammation occurs inappropriately and for unknown reasons. Joint inflammation is a hallmark of rheumatoid arthritis. That includes: Stiffness. The joint is harder to use and might have a limited range of motion. "Morning stiffness" is one of the hallmark symptoms of rheumatoid arthritis. While many people with other forms of arthritis have stiff
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