Which of the following is considered the major risk factor for testicular germ cell tumors ?

In Wilms tumor, hypertension is caused by...

What is the most common cause of bacterial pyelonephritis? 

The middle adrenal artery typically arises from what artery?

In fibromuscular dysplasia, which vessels are most commonly affected? 

What is the most common composition of renal calculi? 

Which of the following types of renal calculi are radiolucent on CT (i.e. not obviously hyperdense to surrounding structures)?

Which structure is arrowed?

The radiographic appearance seen on this skull radiograph (lateral view) has been described in patients with the following diseases EXCEPT one?

The appearance of the internal carotid arteries on the accompanying curved reformats from a CT angiogram in a 35-year-old woman are most likely due to... 

Which of the following is the location for the obstructing urinary tract stone?

Which grade of renal cystic masses is shown on this selected enhanced coronal CT image, according to the Bosniak classification?

A 40-year-old man with end-stage renal failure suffers acute features consistent with a pontine infarct. A CT demonstrates the following features. What is the most likely underlying condition?

An incidental finding is seen on this axial contrast-enhanced CT image. Which malignancy is this patient at increased risk of? 

The Fallopian tubes drain to which lymph node regions?

All the following situations are considered as risk factors for developing urolithiasis EXCEPT...

What is the most common primary tumor of sclerotic bone metastases?

According to the Goldman classification, which of the following features describes a grade III urethral injury?

The comet-tail artifact may be seen in all the following situations EXCEPT...

What is the most common Müllerian duct anomaly?