This video: The veins around your anus tend to stretch under pressure and may bulge or swell. Swollen veins (hemorrhoids) can develop from an increase in pressure in the lower rectum. Factors that might cause increased pressure include: Straining during bowel movements.

Craniectomy is neurosurgical procedure that involves removing a portion of the skull in order to relieve pressure on the underlying brain. This procedure is typically done in cases where a patient has experienced a very severe brain injury that involves significant amounts of bleeding around the brain or excessive swelling of the brain.

Supraventricular tachycardia (SVT) is an abnormal condition of heart which increases normal heartbeat rate rapidly. Normally, heartbeat rate should be between 80 to 100 beats per minute. For more info: https://goo.gl/14btbU

Mastitis is an infection of the breast tissue that results in breast pain, swelling, warmth and redness. You also might have fever and chills. Mastitis most commonly affects women who are breast-feeding (lactation mastitis), although sometimes this condition can occur in women who aren't breast-feeding. In most cases, lactation mastitis occurs within the first six to 12 weeks after giving birth (postpartum), but it can happen later during breast-feeding. The condition can cause you to feel run down, making it difficult to care for your baby. Sometimes mastitis leads a mother to wean her baby before she intends to, but continuing to breast-feed, even while taking an antibiotic for the mastitis, is better for you and your baby.

If you’re considering an epidural to help manage the pain of childbirth, you’re not alone. More than 60 percent of women delivering at hospitals elect for an epidural during labor. And with good reason: An epidural is considered one of the safest methods of pain control, with just one in 3,000 pregnancies experiencing serious complications. It’s also good for you, since you’ll remain awake and alert during the birth, as well as for your baby, since the drugs will barely reach your bloodstream (so they can’t get into hers).

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Cell Adhesion Molecule Inhibition Animation

Australian Blood Donor Saves 2 Millions Babies with Special Right Arm

A salivary gland stone -- also called salivary duct stone -- is a calcified structure that may form inside a salivary gland or duct. It can block the flow of saliva into the mouth. The majority of stones affect the submandibular glands located at the floor of the mouth.

ACL tears are treatable using arthroscopy and minimally-invasive surgical techniques. The surgical success rates for ACL reconstruction exceed 95%. The anterior cruciate ligament is one of the major supportive ligaments in the knee

Rotator cuff pain commonly causes local swelling and tenderness in the front of the shoulder. You may have pain and stiffness when you lift your arm. There may also be pain when the arm is lowered from an elevated position. Beginning symptoms may be mild. Patients frequently do not seek treatment at an early stage. These symptoms may include: Minor pain that is present both with activity and at rest Pain radiating from the front of the shoulder to the side of the arm Sudden pain with lifting and reaching movements Athletes in overhead sports may have pain when throwing or serving a tennis ball As the problem progresses, the symptoms increase: Pain at night Loss of strength and motion Difficulty doing activities that place the arm behind the back, such as buttoning or zippering If the pain comes on suddenly, the shoulder may be severely tender. All movement may be limited and painful.

MRI Exam Procedure

Researchers have received approval to bring 20 brain-dead humans back to life.

Pancreatitis is inflammation of the pancreas. The pancreas is a gland located behind the stomach. It releases the hormones, insulin and glucagon, as well as digestive enzymes that help you digest and absorb food.

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Polycythemia vera (pol-e-sigh-THEE-me-uh VEER-uh) is a slow-growing type of blood cancer in which your bone marrow makes too many red blood cells. Polycythemia vera may also result in production of too many of the other types of blood cells — white blood cells and platelets. These excess cells thicken your blood and cause complications, such as such as a risk of blood clots or bleeding. Polycythemia vera isn't common. It usually develops slowly, and you may have it for years without noticing signs or symptoms. Often, polycythemia vera is found during a blood test done for some other reason. Without treatment, polycythemia vera can be life-threatening. However, with proper medical care, many people experience few problems related to this disease. Over time, there's a risk of progressing to more-serious blood cancers, such as myelofibrosis or acute leukemia.

If you have a blocked artery, your doctor may need to open the blockage and restore blood flow using a small mesh tube called a stent. The stent is inserted in your artery during an angioplasty procedure. Until now, stents were permanent. Now there is a fully dissolving stent available to treat blockages.

Acute aortic dissection can be treated surgically or medically. In surgical treatment, the area of the aorta with the intimal tear is usually resected and replaced with a Dacron graft. Emergency surgical correction is the preferred treatment for Stanford type A (DeBakey type I and II) ascending aortic dissection. It is also preferred for complicated Stanford type B (DeBakey type III) aortic dissections with clinical or radiologic evidence of the following conditions: Propagation (increasing aortic diameter) Increasing size of hematoma Compromise of major branches of the aorta Impending rupture Persistent pain despite adequate pain management Bleeding into the pleural cavity Development of saccular aneurysm

Parkinson disease (PD) is a common neurodegenerative condition. Typically beginning in the sixth or seventh decade of life, it is characterized by the unilateral onset of resting tremor in combination with varying degrees of rigidity and bradykinesia. PD was originally described by James Parkinson (1755-1824), a man of many talents and interests. Parkinson published works on chemistry, paleontology, and other diverse topics. Early in his career he was a social activist championing the rights of the disenfranchised and poor. His efforts in this area were enough to result in his arrest and appearance before the Privy Council in London on at least one occasion. In collaboration with his son, who was a surgeon, he also offered the first description in the English language of a ruptured appendix. His small but famous publication, "Essay on the Shaking Palsy," was published in 1817, seven years before his death. The clinical descriptions of 6 cases was remarkable in part because he never actually examined the people he described. Instead, he had simply observed these people on the streets of London.