A brain tumor is a mass of abnormal cells in the brain. The brain stem includes the midbrain, pons and medulla oblongata and regulates body functions such as blood pressure, heart rate and breathing. The reticular formation is the central core of...
Each year, approximately 2,200 children in the United States are diagnosed with a brain tumor, according to the American Brain Tumor Association. Like brain tumors in adults, many symptoms depend on the location of the tumor. Brain tumor symptoms...
Transient eyelid droop is the most significant side effect of Botox injections administered to the forehead for the removal of wrinkles and creases. It occurs in up to 3 percent of injections. Drooping of one or both eyelids appears after Botox is...
According to "Harrison's Principles of Internal Medicine," lung cancer causes more deaths than any other type of cancer in the United States. The mortality rate five years after diagnosis is close to 90 percent. According to the Centers of Disease...
A droopy eyelid, called ptosis, does not usually cause a threat to the health of the eye, but some people may choose to have surgery to improve the symptoms. During surgery, a surgeon will raise the muscles in the eyelids, which will lift the...
An aneurysm is a bulge in a blood vessel, the walls of which are stretched thin and at constant risk of rupturing. When an aneurysm ruptures in the brain, it can be fatal. Brain cells die when deprived of blood. They can also be destroyed by the...
The National Institutes of Health (NIH) defines an aneurysm of the brain as "a weakened area in the wall of a blood vessel." An estimated 5 percent of the population has a brain aneurysm. The symptoms depend on the location of the aneurysm,...
Tikosyn, or dofetilide, is very specifically prescribed to maintain normal sinus rhythm in patients suffering from atrial fibrillation (sustained high heart rate) who have been successfully converted back to normal sinus rhythm. This medication...
Myasthenia Gravis (MG) is an autoimmune system disease that impacts the muscles. According to the Muscular Dystrophy Association (MDA) the immune system attacks the body's own tissues inappropriately. The National Library of Medicine (NLM)...
An aneurysm is a weakened portion of the arterial wall that balloons out. Most aneurysms occur in portions of the aorta, though arteries in the brain can also balloon. It is critical to identify an aneurysm before it ruptures. High blood pressure,...
Bell's palsy, a temporary nerve paralysis of the seventh cranial nerve, or facial nerve, affects around 40,000 American every year, according to the National Institute for Neurological Disorders and Stroke. Anything that causes swelling,...
In the United States each year, Neurosurgery Today reports that approximately 30,000 people are diagnosed with a ruptured brain or cerebral aneurysm, while as much as 6 percent of Americans may have an unruptured brain aneurysm. A cerebral...
An aneurysm consists of a weak part of a blood vessel that fills with blood and balloons out. Aneurysms that develop in the chest are called thoracic aortic aneurysm. In the abdomen, they are called abdominal aortic aneurysm and in the brain,...
Brain cancer can originate in the brain or move into the brain from another part of the body. Cells that begin in the brain are called primary brain tumors. Secondary brain tumors are called metastatic, or spreading, tumors that form somewhere...
According to the American Social Health Association (ASHA), oral herpes affects between 50 and 80 percent of the adult population in the United States. One-third of those people experience periodic recurrences of about one to six episodes per...
According to MedlinePlus, herpes is the common name for infections caused by the herpes simplex virus (HSV). HSV, says Dr. Lawrence Corey in "Harrison's Principles of Internal Medicine," has been isolated from nearly every site on and inside the...
Botox is a common nonsurgical procedure used to treat wrinkles, headaches and excessive sweating (hyperhidrosis). Botox injections are made from botulinum neurotoxin, which is derived from bacteria called Clostridium botulinum. When injected into...
The condition amblyopia, more commonly known as lazy eye, causes vision problems in around 2 percent of all infants. Lazy eye occurs when one eye struggles to see properly. Over time, an infant will favor the other eye, further weakening the...
Temporal arteritis is an inflammation of the medium and large arteries of the body. Inflammatory cells invade the walls of the affected blood vessels causing reduced blood flow, also known as ischemia. Although it is a systemic disease, temporal...
Bell's palsy is caused by an inflammation of one of your facial nerves, leading to a temporary paralysis of facial muscles. One side, unilateral, or both sides, bilateral, of your face can be affected. Bell's palsy is characterized by a slight...
Sagging eyelids is the condition in which the skin on and around your eyelids droops or hangs down instead of staying taut. Drooping eyelids can occur in one or both eyes and around either the upper or lower lids. Sagging eyelids are most often...
Ptosis is the drooping of one or both of the upper eyelids below the normal position. In severe cases, the drooping lid can shield part or the entire pupil and block your vision. Ptosis usually occurs due to weakened eyelid muscles or a separation...
An aneurysm is a weak spot that balloons out from the walls of a blood vessel. Aneurysms can occur in many places in the body, but brain aneurysms are among the most dangerous. If an aneurysm ruptures in the brain, it leads to a hemorrhagic...
Cerebral aneurysms, or brain aneurysms, occur when there is a bulge in a blood vessel in your head. The National Institute of Neurological Disorders and Stroke states there are three classifications of cerebral aneurysms: a fusiform aneurysm, or...
Lung cancer occurs when cells within the lungs develop genetic mutations that causes them to grow abnormally. This can be due to exposure to certain things in the environment--such as tobacco smoke, radon, and asbestos--or due to hereditary...
Because the visual system of a child develops throughout childhood, parents should be aware of some of the common eye disorders that may affect that development. The parents also have to be proactive since the child may not inform the parents of...
An aneurysm is a bulge in a blood vessel. As with a balloon, the further a blood vessel stretches in an aneurysm, the thinner and weaker its walls grow. Aneurysms can rupture, causing internal bleeding. Aneurysms can occur anywhere in the body,...
Droopy eyelids, a condition known as ptosis, result when you have weakening in the muscles that lift and lower your lids. The drooping may affect one eye or both eyelids and may disrupt your visual field, depending on the severity. In such cases,...
Brain aneurysms are abnormal bulges in the walls of arteries in the brain. They occur where the artery walls are weak, and blood pressure causes the sides of the walls to balloon out. People with brain aneurysms, especially if they are small,...
