These complications are evident in thoracic radiographic examinations. Radiographic imaging often is performed to confirm the diagnosis. Joint space narrowing is therefore a component of several radiographic classifications of osteoarthritis. Two forms of radiographic images are in use in medical imaging. Diagnosis relies on clinical signs and characteristic changes in radiographic images of the metaphyses. Diagnosis is reached with esophageal manometry and barium swallow radiographic studies. Diagnosis is based on clinical and radiographic evidence. Several lesions can appear similarly in radiographic appearance. The clinical and radiographic manifestations of Proteus syndrome are highly variable. This injury is confirmed on radiographic evaluation. Radiographic exams are usually performed by radiographers. The resulting void on the radiographic film between the bone and meniscus represents the cartilage. The Cephalometer is used to obtain standardized and comparable craniofacial images on radiographic films. Lymphatic and radiographic studies support Whimsters observations. Another method of radiographic evaluation is taking an X-ray image of the whole head.