Medical terms beginning with O

A drug that may improve the response of cancer cells to chemotherapy.

A substance being studied in the treatment of several types of cancer.

Having an abnormally high, unhealthy amount of body fat.

A condition marked by an abnormally high, unhealthy amount of body fat.

An improvement that can be measured by the health care provider (for example, when a tumor shrinks or there are fewer cancer cells in the blood).

A measurable response.

A type of study in which individuals are observed or certain outcomes are measured.

An anxiety disorder in which a person has intrusive ideas, thoughts, or images that occur repeatedly, and in which he or she feels driven to perform certain behaviors over and over again.

Blockage of a passageway.

A dulled or reduced level of alertness or consciousness.

Cancer in which the site of the primary (original) tumor cannot be found.

Cancer cells are found in sputum (mucus coughed up from the lungs), but no tumor can be found in the lung by imaging tests or bronchoscopy, or the tumor is too small to be checked.

A health professional trained to help people who are ill or disabled learn to manage their daily activities.

A procedure that uses infrared light waves to give three-dimensional (3-D) pictures of structures inside tissues and organs.

A drug similar to the naturally occurring growth hormone inhibitor somatostatin.

A type of radionuclide scan used to find carcinoid and other types of tumors.

A rare cancer of melanocytes (cells that produce the pigment melanin) found in the eye.

A measure of the odds of an event happening in one group compared to the odds of the same event happening in another group.

A smell.

A substance that gives off a smell.