Computed axial tomography (CAT) is a medical imaging technique that uses X-rays to create detailed images of the body's internal structures. While CAT is the most commonly used term for this type of imaging, there are also several synonyms that are used interchangeably. These include computed tomography (CT), computerized axial tomography (CAT scan), and sometimes even just "tomo." These terms all refer to the same type of imaging and can be used to describe the same procedure. Regardless of the terminology used, this type of imaging has revolutionized the field of medical diagnosis and has become an essential tool for diagnosing and treating a wide range of medical conditions.