Related by context. Frequent words. (Click for all words.) 68 chest X ray 65 chest X rays 63 colonoscopy 61 cystoscopy 61 CT scan 60 biopsy 59 CAT scan 58 mammogram 58 coronary angiography 58 needle biopsy 58 liver biopsy 58 screening mammogram 57 angiogram 57 colposcopy 57 sigmoidoscopy 57 bronchoscopy 56 PET scan 56 biopsies 56 prostate biopsy 56 fecal occult blood 55 angiography 55 digital rectal exam 55 CT scans 55 workup 55 echocardiogram 54 adenoma 53 ultrasound scan 53 pap smear 53 angiograms 53 X ray 53 pelvic exam 52 heart catheterization 52 ultrasonography 52 biopsied 52 breast MRI 51 computed tomography 51 cardiac catheterization 51 x ray 51 Pap smear 51 histopathology 51 spirometry 50 endoscopy 50 pre cancerous lesions 50 specific antigen 50 polyp 50 dense breasts 50 x rays 50 radiologist 50 nodule 49 calcifications 49 screening mammograms 49 bloodwork 49 rectal bleeding 49 spinal tap 49 mSv 49 polyps 49 adenomas 49 lesion 48 sputum 48 echocardiography 48 scans 48 CAT scans 48 mammography 48 CT colonography 48 BSGI 48 MRI scan 48 radiographic 48 histologic 48 PET scans 48 ultrasound scans 47 deep venous thrombosis 47 colonoscopies 47 Colonoscopy 47 routine mammogram 47 squamous cell 47 FOBT 47 EKG 47 catheterization 47 radiographs 47 cytology 47 breast lump 47 Pap test 47 MRIs 47 mammograms 46 carcinoma 46 asymptomatic 46 MDCT 46 screening mammography 46 lesions 46 X rays 46 amniocentesis 46 serum creatinine 46 echocardiograms 46 abnormality 46 ultrasound 46 prostate specific antigen 46 postoperative complications 46 virtual colonoscopy 46 precancerous lesions 46 MRI scans 46 lymph node