The central retinal artery is the main blood supply to the inner layers of the eye's retina. When it is...

Arterial occlusion occurs when an artery becomes partially or completely blocked, disrupting oxygenated blood flow. This can occur in the...

Every heartbeat, or sinus rhythm, is controlled by electrical signals that travel from the atria, or upper chambers, to the...

A baby with anencephaly is missing parts of the brain, including skull bones. This makes survival difficult. Most infants die...

Many people with SSc also have problems with their heart, lungs or digestive system. These are more likely to cause...

Also called hardening of the arteries, atherosclerosis can happen in any blood vessel. It most commonly affects the arteries that...

Corns and calluses are hardened areas of skin that develop when friction or pressure builds up in an area. They...

The prevalence of syphilis is on the rise globally. Syphilis is caused by the spirochete Treponema pallidum and goes through...

The goal of treatment at stage 4 cancer is to reduce symptoms and keep the cancer from spreading. The specific...

Most cancers are staged based on physical exams, tests and imaging scans. The information helps doctors know how the cancer...