A gallbladder polyp is an elevation of the gallbladder mucosa that protrudes into the gallbladder lumen. Gallbladder polyps have an estimated prevalence in adults of between 0.3%-12.3%. However, only 5% of polyps are considered to be “true” gallbladder polyps, meaning that they are malignant or have malignant potential. The main radiological modality used for diagnosing and surveilling gallbladder polyps is transabdominal ultrasonography. However, evidence shows that other modalities such as endoscopic ultrasound may improve diagnostic accuracy. These are discussed in turn during the course of this review. Current guidelines recommend cholecystectomy for gallbladder polyps sized 10 mm and greater, although this threshold is lowered when other risk factors are identified. The evidence behind this practice is relatively low quality. This review identifies current gaps in the available evidence and highlights the necessity for further research to enable better decision making regarding which patients should undergo cholecystectomy, and/or radiological follow-up.

develop ways in which health and safety performance can be improved.The HMSO's sectional list 18 (Health and Safety Executive forms and publications) lists many publications, parts of which are now applicable to hospitals and associated areas. Sectional list 18 (Department of Health and Social Security) enumerates many codes, etc. Publications listed under "Health Technical Memoranda" relate to antistatic precautions (rubber, plastics. flooring in anaesthetic areas), electrical services, piped gases, and other items, while under "Hospital Technical Memoranda" is the safety code for electromedical apparatus. The electrical safety code for hospital laboratory equipment comes under "Hospitals, Building and Equipment." Other codes and handbooks cover ionising radiations, radioactive isotopes, and radiological protection. All are available from HMSO.A publication which I have found most helpful is the Safety Manual of the University of Manchester Institute of Science and Technology.' This excellent work was compiled on behalf of the Safety and Environmental Health Committee, and 78 subjects are covered. These include laboratories-pathological, chemical, and animal; chemical hazards and gases; gas cylinders; explosions; electrical safety; glassware; hand tools; lasers; lifts and lifting; fire prevention and first aid; wastes, water supplies, and welfare; autoclaves; car parks; and other areas. There is a wealth of reference material available at the end of each chapter, and codes of practice, British