Medical Webbook

Heart attack

Myocardial infarction

Myocardial infarction is popularly known as a heart attack, sudden death of part of the heart muscle characterized, in most cases, by severe unremitting chest pain. Each year in the US about 1 million people have...

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Myocarditis

Myocarditis

Inflammation of the heart muscle. The diagnosis of myocarditis is sometimes made after death when a young person has died unexpectedly during vigorous exercise. In such cases the pathologist finds evidence of inflammation, which is usually assumed to be due to...

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Mycosis fungoides

Mycosis fungoides

Mycosis fungoides is a type of lymphoma ( cancerous spread of lymphoid tissue) that primarily affects the skin of the buttocks, back, or shoulders but can also occur in other sites. The cause of this rare disorder is unknown. The...

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Myasthenia gravis

Myasthenia gravis

A disorder in which the muscles become weak and tire easily. The eyes, face, throat, and limb muscles are most commonly affected. Typically, the sufferer has drooping eyelids, a blank facial expression, and weak, hesitant speech. CAUSES AND INCIDENCE Myasthenia...

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