This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Radiology
[{'content': '56yr old male c/o burning micturation, with increasing frequency and hesitancy. Following Radiograph from intravenous pyelogram is taken. What is the most likely diagnosis? \nSelect and explain. \nA. multicystic dysplasitic kidney disease, B. Aoic aneurysm, C. Renal cell carcinoma, D. Pelvic lipomatosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Pelvic Lipomatosis Imaging Findings : Increased lucency in the pelvis on conventional radiography due to fat deposition. Inveed teardrop-shaped bladder (pear-shaped bladder). Ureters may be dilated and may be medially or laterally displaced distally.Hydronephrosis, usually bilaterally. &;The rectum is elongated and symmetrically Ref : David Sutton 9th ed', 'role': 'assistant'}]