General Medical Terms

A radiolabeled monoclonal antibody that is used to detect certain types of B-cell non-Hodgkin lymphoma and is being studied in the detection of other types of B-cell tumors.

In situ describes something found or observed in its original, natural location, without having moved, spread, or been removed from that place.

In vivo describes a process or experiment studied within a living organism, contrasted with laboratory based methods that use isolated cells or tissue.

A type of metastasis in which skin cancer spreads through a lymph vessel and begins to grow more than 2 centimeters away from the primary tumor but before it reaches the nearest lymph node.

Inability to control the flow of urine from the bladder (urinary incontinence) or the escape of stool from the rectum (fecal incontinence).

Grown in the laboratory under controlled conditions.

Parts of the flowering plant have been used in some cultures to treat certain medical problems.

The inner bark of this plant has been used in some cultures to treat certain medical problems.

Regulators approve drugs for named indications, yet prescribing outside that list is legal, common, and described as off-label use.

An exam of the inside of the back of the eye using a beam of light and a hand-held lens.

The inferior vena cava is the body's largest vein, returning oxygen poor blood from the lower body and abdomen to the heart.

Infertility is the inability to conceive after a defined period of trying, arising from causes affecting either partner or both together.

A technique in which abnormal tissue is exposed to a burst of infrared light (a type of radiation).

In medicine, a procedure in which an infrared camera (one that senses heat) is used to measure temperature differences on the surface of the body.

Swallowing food, a medication, or a harmful substance by mouth is called ingestion, a term used both in nutrition and in poisoning evaluations.

Inhalation is the physical act of drawing air or another substance into the lungs, the route used for gases, aerosols, and certain inhaled medications.

Describes a condition that cannot be treated by surgery.

In medicine, a method used to put a liquid into the body slowly or drop by drop.

In biochemistry, a type of molecule that binds to DNA and inserts itself into the DNA structure.

One of a group of related proteins made by leukocytes (white blood cells) and other cells in the body.