Cysts After Researching Cysts of a Particular Type, a Doctor

question 193

Essay

Cysts After researching cysts of a particular type, a doctor learns that out of 10,000 such cysts examined, 1,500 are malignant and 8,500 are benign. A diagnostic test is available which is accurate 80% of the time (whether the cyst is malignant or not). The doctor has discovered the same type of cyst in a patient. {Cysts Narrative} What is the probability that the patient has a malignant cyst if he or she tests negative?

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Definitions:

Organs

Structures made up of different tissues that perform specific functions necessary for the life and maintenance of an organism.

Contrast Medium

A substance used in medical imaging to improve the contrast of structures or fluids within the body in scans such as X-rays, MRIs, and CT scans.

Myelogram

A diagnostic imaging test that uses a dye and X-rays or CT scans to view the spinal cord's structure, particularly to detect abnormalities or injuries.

Spinal Cord

The major nerve pathway from the brain through the spine, responsible for transmitting signals to and from the brain to various parts of the body.