<prompt> Barium oesophagogram findings in carcinoma esophagus are all EXCEPTDistortion of the esophageal lumenAnnular strictureEdges of filling defect are not clear-cutIrregular rat - tail filling defect of the distal esophagus  <response>: C. 818 - S. Das Barium oesophagogram in carcinoma esophagus shows 1. Irregular mucosal filling defect 2. Distortion of the esophageal lumen 3. Annular stricture 4. Irregular rat - tail filling defect of the distal esophagus with a shouldered edge 5. Edges of filling defect are usually sharp and clear-cut Tertiary waves consist of non-propulsive disorganized contractions which fail to advance the barium bolus AI 09 Apple core sign is a feature of carcinoma of colon Bird of prey sign is seen in the radiographic barium examination of - Sigmoid volvulus 