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?

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