Screening is looking for cancer before a person has any symptoms. This can help find cancer at an early stage when it may be easier to treat. Lung cancer may have spread by the time a person has symptoms. One reason lung cancer is so serious is because it usually is not found until it has spread and is more difficult to treat. Screening may provide new hope for early detection and treatment of lung cancer. Scientists study screening tests to find those with the fewest risks and most benefits. They look at results over time to see if finding the cancer early decreases a person's chance of dying from the disease.

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.

Watch that video of The Most Invasive Parasites in the World

Scientists don't know what causes canker sores. Most believe that there is a problem with the body's immune system. Emotional stress, menstruation or injury to the mouth are common triggers for simple canker sores. Certain foods such as citrus or acidic foods may trigger a canker sore or make one more uncomfortable.

This is video 1 of 2 on diabetic ketoacidosis (pathophysiology and signs of diabetic ketoacidosis / DKA):

Histology of Neurovascular Bundle

Delivery of Twin birth

Eye Pressure Test

Bone healing can be divided into four stages: inflammation; soft callus formation; hard callus formation; remodeling.

Podalic version is an obstetric procedure wherein the fetus is turned within the womb such that one or both feet present through the cervix during childbirth. It is used most often in cases where the fetus lies transversely or in another abnormal position in the womb.

Difference between healthy lungs and smoker lungs

While the incidence of most sports-related injuries has been holding steady for the past two decades, injuries to the anterior cruciate ligament (ACL) continue to increase significantly, particularly in female athletes. In fact, on many college teams, as many as 30 to 50 percent of young women have had an ACL injury during their high school careers in certain sports, such as basketball, soccer and gymnastics.
Watch pediatric orthopedic surgeons at Akron Children's Hospital perform arthroscopic surgery to replace a young athlete's ACL

This video shows the heart transplant surgery

The goal of breast cancer surgery is to remove the entire tumor from the breast. Some of the lymph nodes in the underarm area (axillary nodes) may also be removed to see if cancer cells are present.

Watch that Human Brain Removal During Medical Autopsy

Not sure what to expect with your child's upcoming surgery at Wesley Children's Hospital? This guided tour will walk you through the process to make both patients and families feel as comfortable as possible.

This information is collected from Oncolex. For more on colon and rectum (

MRI Exam Procedure

Nose Plastic Surgery: Open Rhinoplasty