title: The cobra head sign.
authors.affiliation: Department of Radiology, Seth G.S. Medical College and King Edward Memorial Hospital, Parel, Mumbai 400012, India.
authors.forename: Govind B
authors.initials: GB
authors.lastname: Chavhan
mesh_terms: D006801:Humans; D014518:Ureterocele / Q000000981:diagnostic imaging*; D001743:Urinary Bladder / Q000000981:diagnostic imaging; D014567:Urography