Screening and Prevention
The process of colonic carcinogenesis probably evolves over years. Neoplastic polyps and early localized carcinomas can be resected readily with excellent long-term results. There is therefore considerable interest in screening certain populations for colonic polyps and carcinomas using annual testing for occult fecal blood and periodic (every three to five years] proctosigmoidoscopy beginning at age 40 to 50. The finding of occult blood in the stool should be followed up rigorously with radiological or endoscopic examination of the entire colon. There is still some debate about the cost effectiveness of this approach in the general population. Quite clearly, however, individuals known to be at high risk for developing carcinoma of the colon (familial polyposis syndrome, prior colonic polyp or cancer, longstanding ulcerative colitis) should be screened even more frequently than the schedule noted above.
- LABORATORY TESTS IN LIVER DISEASE
- NONOBSTRUCTIVE CAUSES OF ISCHEMIC HEART DISEASE
- HEART DISEASE AND PREGNANCY
- CHROMIC PANCREATITIS
- PROSTHETIC VALVES
- PRINCIPLES OF CARDIOPULMONARY RESUSCITATION
- PERICARDIAL EFFUSIOH
- Hepatocellular Carcinoma
- ANTIBIOTICS
- Incidence
- Clinical Presentation
- SYNCOPE
- SPECIFIC CLINICAL DISORDERS
- MISCELLANEOUS AORTIC DISEASE
- PULMONARY HEART DISEASE
- Mesangioproliferative Glomerulonephritis
- Amyloidosis
- OXYGEN
- PATHOGENESIS OF RESPIRATORY TRACT INFECTION
- Renal Biopsy
- TUMORS OF THE PLEURAL SPACE
- NORMAL ABSORPTION
- Renal Tumors
- MULTISYSTEM DISEASE WITH RENAL INVOLVEMENT
- Renal Glycosuria
- APPROACH TO THE PATIENT WITH RENAL DISEASE
- Tocainide
- LABORATORY TESTS TOR BILIRUBIN
- PERFUSION
- Lidocaine
- Systemic Vasculitides
- Clinical Manifestations
- CARCINOMA OF THE PANCREAS - Diagnosis
- Treatment and Prognosis
- Hepatic Diseases