In situ, carcinoma
Cancer that has stayed in the place where it began and has not spread to neighboring tissues (for example, squamous cell carcinoma in situ).
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- In vitro
In glass, as in a test tube. An in vitro test is one that is done in glass or plastic vessels in the laboratory. In vitro is the opposite of in vivo.
- In vitro fertilization
A laboratory procedure in which sperm are put in a special dish with unfertilized eggs to achieve fertilization. The embryos that result can be transferred into the uterus or frozen (cryopreserved) for future use. Abbreviated IVF.
- In vivo
In the living organism. For example, an experiment that is done in vivo is done in the body of a living organism as opposed to in a laboratory method that does not use the living organism as the host of the test. In vivo is the opposite of in vitro.
- In-law
A relative by marriage. An in-law is not a biologic relative. This distinction is of importance in a medical family history.
- Inappropriate ADH secretion
A condition that results in the inability to produce dilute urine and imbalance of fluids and electrolytes in the body, particularly lowering blood sodium. Symptoms include nausea, vomiting, muscle cramps, confusion, and convulsions. This syndrome may occur with oat-cell lung cancer, pancreatic cancer, prostate cancer, and Hodgkin’s disease, among other disorders. Also known as syndrome […]