739 Radiology ‘Adder head’ appearance on voiding cystourethrogram in bladder is feature of AHorse shoe kidneyBVURCUreterocele (Correct Answer)DCarcinoma of urinary bladder
741 Radiology Cervical burnout is a phenomenon caused by ADecreased X-ray absorption in the cervical region of teeth with proximal cariesBDecreased X-ray absorption in the cervical region of normal teeth (Correct Answer)CDecreased X-ray absorption in the cervical region of teeth with root cariesDDecreased X-ray absorption in the cervical region of hypoplastic teeth
743 Radiology Carpal fusion is seen in? AApert's syndromeBRheumatoid arthritisCPost-traumatic casesDAll of the above (Correct Answer)
744 Radiology Mexican hat sign is seen in ASigmoid volvulusBMidgut volvulusCSessile colonic polypDPedunculated polyp (Correct Answer)
745 Radiology A patient with a history of radiation therapy required special consideration because: AThe vascularity of the bone may be disrupted (Correct Answer)BSalivary function may be increasedCPlaque accumulation greater than normal can be expectedDThe potential for periodontal disease is greatly increased
747 Radiology Regarding CT scan all are true except – A50% reduction in kVp reduces 50% radiation dose (Correct Answer)BDecrease in mA (milli amperes) decreases radiation dose exposure significantly in pediatric chestCQuality of the radiation generated depends upon voltageDRadiation dose exposure is directly related to the time of exposure