Genitourinary Imaging
Beak sign on IVP • “Beak sign” can be seen with large cysts seen on IVP Bergman's coiled catheter sign Bergman's coiled catheter sign: on retrograde pyelogram the catheter is typically coiled in dilated portion of ureter just distal to the lesion. Doughnut sign on IVP or angiography Lobar dysmorphism: doughnut sign on IVP or angiography Goblet sign Goblet sign: retrograde pyelogram demonstrates dilated ureteral segment distal to obstruction with filling defect and meniscus Ureteral tumors Pseudokidney sign (US) Elliptical structure in pelvis or abdomen with an echogenic center (blood, prominent mucosa, infiltrated bowel wall) resembling the US appearance of a kidney. • Inflammatory bowel disease Crohn disease Infectious colitis • Tumor • Intussusception • Always exclude pelvic kidney Ring sign Sequestered, sloughed papillae cause filling d