A delayed onset of bowel activity after the start of conventional polyethylene glycol predicts inadequate colon cleansing before colonoscopy: A prospective observational study.

Background: Evaluation of factors correlating with the quality of bowel preparation (QBP) is critical to ensure high-quality colonoscopy.

Objectives: We sought to determine whether the time interval between the start of conventional polyethylene glycol (PEG) ingestion and the onset of bowel activity is predictive of QBP.

Methods: Consecutive adult outpatients attending colonoscopy were prospectively assessed.

Indolent systemic mastocytosis in a patient with ileocolitis.

Systemic mastocytosis is a clonal disorder of the mast cell and its progenitor cell. It is a rare disorder with unknown incidence in Greece, with an estimate of 2 cases per year in Great Britain. We present a case of an asymptomatic, 72-year-old man who was found to have ileocolitis on endoscopy.