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Pleural effusion is the abnormal accumulation of fluid in the chest cavity. Fluid accumulates in the pleural sac, not the lungs, so the lungs are essentially floating in a chest full of fluid. This fluid occupies space within the chest, so the lungs cannot expand as fully as they should. Treatment and prognosis vary depending on the underlying cause.
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A seizure is a sudden surge in the electrical activity of the brain causing signs such as twitching, shaking, tremors, convulsions, and/or spasms. Epilepsy is used to describe repeated episodes of seizures. With epilepsy, the seizures can be single or may occur in clusters, and they can be infrequent and unpredictable or occur at regular intervals. Since many different diseases can lead to seizures, it is important to perform diagnostic tests to investigate the underlying cause of the seizures. Treatment of seizures in the cat depends on the nature of the underlying disease.
