title: Asymptomatic pheochromocytoma of retroperitoneum presenting as large hypovascular mass.
mesh_terms: D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging; D000310:Adrenal Gland Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging*; D000792:Angiography; D003937:Diagnosis, Differential; D006801:Humans; D007668:Kidney / Q000098:blood supply / Q000000981:diagnostic imaging; D052177:Kidney Diseases, Cystic / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D010673:Pheochromocytoma / Q000098:blood supply / Q000000981:diagnostic imaging*; D012186:Retroperitoneal Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014567:Urography