How are pulmonary function tests done?
What is a tomogram? Is it related to a CT scan? A tomogram or laminagram is a special chest x-ray. If the regular chest x-ray shows a shadow in the lungs, tomograms can tell the physician more about the size, shape, or other characteristics of the lump. It is a series of pictures of various sections of lung tissue which when put together give a three dimensional picture of abnormal lung growth. In cases of benign lumps, the tomogram tells the doctor enough about the tumor so he can make the diagnosis based on the tomogram pictures alone. If the tomogram suggests that the lump is cancerous, more tests will be needed to narrow down the diagnosis. A CT scan computerized tomography is often taken. What is a bronchogram? A bronchogram is another specialized x-ray examination which is sometimes used. A small amount of radio opaque dye is put into the bronchial tubes, and usually into the trachea after the area has been numbed. The patient is tilted into various positions to distrib...