Dictionary

intraocular In the eye. For example, intraocular pressure is the pressure within the eye.

intraobserver variation The amount of variation one observer experiences when observing the same material more than once.

intramuscular Into the muscle. For example, an intramuscular medication is given by needle into the muscle. Abbreviated IM.

intrahepatic Within the liver. For example, a liver tumor is an intrahepatic growth.

intraepithelial Within the layer of cells that forms the surface or lining of an organ. For example, a blister forms fluid in the intraepithelial layer of the skin.

intraductal papilloma A benign, wart-like growth that occurs in breast ducts.

intraductal carcinoma A condition characterized by the proliferation of malignant cells in the lining of a breast duct without evidence of spreading outside the duct to other tissues in the breast or outside the breast. Also known as ductal carcinoma in situ, abbreviated DCIS. DCIS is clearly a precursor (forerunner) of invasive breast cancer. DCIS…

intradermal test A type of skin test in which an agent (often a protein) is injected into the skin to test the reaction to the agent. Intradermal tests are often used to diagnose allergies and to test cellular immunity.

intradermal In the skin. For example, an intradermal injection is given into the skin. Abbreviated ID.

intracytoplasmic sperm injection An assisted reproduction procedure in which a single sperm is injected directly into a single egg cell in the laboratory to achieve fertilization. Abbreviated ICSI.

intractable Unstoppable. For example, intractable diarrhea is diarrhea that can’t be stopped, even with medication, and intractable pain is pain that can’t be stopped, even with medication.

intracranial hemorrhage Bleeding inside the head. Intracranial hemorrhage can be caused by many conditions including head injury, ruptured aneurysm, and stroke.