Diagnostic imaging in cancer.

摘要: Screening chest radiographs do not reduce mortality from lung cancer. Should an incidental noncalcified pulmonary parenchymal nodule be discovered, CT will demonstrate one third of such patients to, in fact, have the multiple nodules metastatic disease. is very helpful to guide fine needle aspiration biopsy lesions and assist evaluation for resectability. MR can special circumstances, including definition extent paravertebral, superior sulcus, diaphragmatic lesions. Endorectal ultrasound sensitive enough function as a screening tool prostate cancer but used routinely biopsies. are rarely staging this Given highly characteristic trait bone metastasis cancer, scan mandatory all patients. Double contrast barium enema adjunct or alternative sigmoidoscopy colorectal screening, preoperative patients, postoperative surveillance. detect macroscopic adenopathy liver metastases; generally preferred study. mammography major impact reducing breast mortality. It recommended that baseline study obtained at age 35. Annual biannual examinations should commence 40. Any palpable lesion, whether it demonstrated mammographically, must subjected biopsy. Ultrasound most useful initial imaging evaluating pelvic masses. will, on occasion, identify origin mass determinable scan. particularly valuable parametrial spread (inoperability) cervical has been underused purpose. Surgery remains mainstay ovarian endometrial although relapse, ascites, metastases. Bone remain standard procedures detecting metastases these respective organ systems. invaluable epidural spinal cord compression with vertebral Contrast-enhanced more than contrast-enhanced brain metastases, latter tool. Chest improve detection when crucial importance.