A Rorschach stability study in a nonpatient adult sample.

The objective of this study was to provide new primary data on Rorschach Comprehensive System stability levels. To achieve this, we tested 75 French nonpatient adults twice on the Rorschach with a 3-month interval between the tests. Interrater reliability was in the excellent range for most of the variables studied.

Failure of colonoscopy to detect colorectal cancer: evaluation of 47 cases in 20 hospitals.

Background: Colonoscopy is the gold standard for the detection of colon polyps and cancers, but failed detections can occur and the reasons are incompletely understood.

Methods: During a retrospective evaluation of the sensitivity of barium enema and colonoscopy in 20 Indiana Hospitals, we encountered 47 cases of colorectal cancer in which a colonoscopy performed within 3 years of the diagnosis had not detected the cancer. Cases were reviewed for location of tumor, extenuating factors, pathologic features, delay in diagnosis from failed detection, and who performed the examination.

Colonoscopic miss rates of adenomas determined by back-to-back colonoscopies.

Background & Aims: The miss rate of colonoscopy for neoplasms is poorly understood. The aim of this study was to determine the miss rate of colonoscopy by same day back-to-back colonoscopy.

Methods: Two consecutive same day colonoscopies were performed in 183 patients.

Relative sensitivity of colonoscopy and barium enema for detection of colorectal cancer in clinical practice.

Background & Aims: The relative sensitivities of barium enema and colonoscopy for colorectal cancer are still debated. The aim of this study was to determine the relative sensitivity of barium enema and colonoscopy in general clinical practice.

Methods: Medical records of 2193 consecutive colorectal cancer cases identified in 20 central Indiana hospitals were reviewed.

Neoplasia distal to the splenic flexure in patients with proximal colon cancer.

Background: Current American Cancer Society recommendations are that persons aged 50 years or older undergo screening flexible sigmoidoscopy every 3 to 5 years. In clinical practice, persons with adenomas at sigmoidoscopy are generally referred for full colonoscopy. However, cancers proximal to the splenic flexure may not be accompanied by neoplasia distal to the splenic flexure.