Canker sores (Aphthous ulcer) are small, painful ulcers on the inside of the mouth, tongue, lips, or throat.Canker sores are white or yellow and surrounded by a bright red area. They are not cancerous.

This form of liver cancer is called primary liver cancer. Noncancerous, or benign, liver tumors are common. They do not spread to other areas of the body, and they usually do not pose a serious health risk. In most cases, benign liver tumors are not detected because they cause no symptoms.

When you’re depressed, it can feel like you’ll never get out from under a dark shadow. However, even the most severe depression is treatable. So, if your depression is keeping you from living the life you want to, don’t hesitate to seek help. Learning about your depression treatment options will help you decide what approach is right for you. From therapy to medication to healthy lifestyle changes, there are many effective treatments that can help you overcome depression and reclaim your life.

Scientists have developed a wireless brain implant that enabled a paralyzed monkey to walk again.

The cardiac conduction system is a group of specialized cardiac muscle cells in the walls of the heart that send signals to the heart muscle causing it to contract. The main components of the cardiac conduction system are the SA node, AV node, bundle of His, bundle branches, and Purkinje fibers.

The heart and circulatory system (also called the cardiovascular system) make up the network that delivers blood to the body's tissues. With each heartbeat, blood is sent throughout our bodies, carrying oxygen and nutrients to all of our cells.

Although your body may harbor the bacteria that cause tuberculosis, your immune system usually can prevent you from becoming sick. For this reason, doctors make a distinction between: Latent TB. In this condition, you have a TB infection, but the bacteria remain in your body in an inactive state and cause no symptoms. Latent TB, also called inactive TB or TB infection, isn't contagious. It can turn into active TB, so treatment is important for the person with latent TB and to help control the spread of TB. An estimated 2 billion people have latent TB. Active TB. This condition makes you sick and can spread to others. It can occur in the first few weeks after infection with the TB bacteria, or it might occur years later. Signs and symptoms of active TB include: Coughing that lasts three or more weeks Coughing up blood Chest pain, or pain with breathing or coughing Unintentional weight loss Fatigue Fever Night sweats

This 3D medical animation contains the discharge instructions for removal of a Foley catheter from a man. The step-by-step procedures for emptying the Foley bag and removing the Foley catheter are shown. Symptoms requiring a follow-up call to the surgeon are listed.

Acute hemothorax due to aortic rupture in aortic dissection with lung collapse and mediastinal shift.

ACE Inhibitor Mechanisms. Angiotensin converting enzyme (ACE) inhibitors are agents used to relax blood vessels and lower blood pressure. They prevent an enzyme from producing angiotensin II, which narrows blood vessels and raises blood pressure, meaning the heart has to work harder to pump blood around the body.

This video demonstrates a step-by-step technique for using the TFN-Advanced™ Proximal Femoral Nailing System (TFNA).

A hematoma is a common complication of surgical procedures. A large, expanding hematoma can result in necrosis of the overlying skin (1,2) or adjacent subcutaneous fat, increased incidence of infection, scarring, skin hyperpigmentation, tissue edema and a prolonged convalescence.

Grape Jelly Abscess on the Butt

A doctor pops a giant cyst on a boy's eye and films the whole thing. As the big cyst pops, puss oozes out.

Fenestration of Middle Cranial Fossa Arachnoid Cyst with Accompanying Subdural Hygrom

Trying to survive medical school funny video

Arterial Blood Gas Sampling

Using 3D animations we have come up with a new way of demonstrating how to perform portable ultrasound examinations

Learn a simple way to tell if you might be suffering from an undiagnosed autoimmune condition. Examples of autoimmune conditions include: • alopecia areata

Coronary artery bypass grafting (CABG) is a type of surgery that improves blood flow to the heart. Surgeons use CABG to treat people who have severe coronary heart disease (CHD). CHD is a disease in which a waxy substance called plaque (plak) builds up inside the coronary arteries.