Case profile of the month.
D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging*; D000230:Adenocarcinoma / Q000175:diagnosis; D003951:Diagnostic Errors; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D010236:Paraganglioma, Extra-Adrenal / Q000000981:diagnostic imaging*; D011859:Radiography