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Pseudogout is a type of arthritis that causes pain, redness, heat, and swelling in many joints. The symptoms resemble those of

Pulmonary embolism happens when an artery in the lung is suddenly blocked. It's usually caused by a blood clot in a leg vein that

Psychosis is a mental and behavioral disorder in which a person has trouble telling the difference between what is real and what

The ductus arteriosus is a blood vessel in a fetus that connects the pulmonary artery, which carries blood to the lungs, and the

Primary progressive multiple sclerosis is a form of MS in which the disease gets worse from the start. It occurs in a small number

The rotator cuff is a group of four tendons and their related muscles that cover the shoulder joint. The rotator cuff helps keep

Radiation therapy is the use of high-energy radiation, such as X-rays, to destroy cancer cells and shrink tumors. Radiation may

A rib fracture is a crack or break in one of the bones of the rib cage. A rib fracture is most often caused by a direct blow to

Range of motion is the degree of movement a joint has when it is extended, flexed, and rotated through all of its possible

Raynaud's phenomenon is a condition in which some areas of the body have an exaggerated response to cold temperature or emotional