[edit on Wikidata] A chylothorax (or chyle leak) is a type of pleural effusion. It results from lymph formed in the digestive system called chyle accumulating in the pleural cavity due to either disruption or obstruction of the thoracic duct. In people on a normal diet, this effusion can be identified by its turbid, milky white appearance, since chyle contains high levels of triglycerides.
A biopsy is a medical test commonly performed by a surgeon, interventional radiologist, or an interventional cardiologist involving sampling of cells or tissues for examination.It is the medical removal of tissue from a living subject to determine the presence or extent of a disease.he tissue is generally examined under a microscope by a pathologist, and can also be analyzed chemically. When an entire lump or suspicious area is removed, the procedure is called an excisional biopsy.
A brain biopsy is a procedure used to remove a tumor or a piece of tissue from the brain so that it can be examined under a microscope to diagnose illness.Types of brain biopsies include needle biopsy, stereotactic biopsy, and open biopsy. In a needle biopsy, a small hole is drilled into the skull.A narrow, hollow needle is placed into the incision to extract a tiny portion of the tumor or tissue.ypes of brain biopsies include needle biopsy, stereotactic biopsy, and open biopsy. In a needle biopsy, a small hole is drilled into the skull. A narrow, hollow needle is placed into the incision to extract a tiny portion of the tumor or tissue.