Yes, you can sue Michigan hospital for misdiagnosis of a stroke of a patient in the emergency room. When the emergency room misdiagnoses a stroke of a patient, medical malpractice may occur. Medical malpractice occurs when the hospital is considered negligent. The hospital is considered negligent when a patient suffers more severe and prolonged disability, aggravated conditions, and failure to recover as fully as the patient would have if he or she would have been properly diagnosed. If you or a family member suffers severe injury or disability due to the misdiagnosis of a stroke, you may have means for a medical malpractice lawsuit and can sue the Michigan hospital responsible for the misdiagnosis.