In which organ may a ‘beaver tail’ variant be found?

Which of the following etiologies of splenic infarction is more common in younger patients?

What type of inflammatory enteritis often involves multiple vascular territories and the genitourinary system?

What is the most frequent indication for emergency non-obstetric surgery in pregnancy?

Which of the following arteries is a functional branch of the anterior division of the internal iliac artery in an adult female?

A 40-year-old man with poor urinary stream. Regarding the retrograde urethrogram findings, what is the most probable cause of the urethral stricture in this patient?

A 65-year-old male patient with right flank pain. Regarding pre and post-contrast CT images what is the Bosniak class for the right renal cystic mass?

A 65-year-old female patient with left flank pain and hematuria. Regarding pre and post-contrast CT images what is the Bosniak class of the left renal cystic mass?

A 60-year-old male patient with microscopic hematuria. Regarding pre and post contrast CT images what is the Bosniak class of the left renal cystic mass?

A 55-year-old female patient with microscopic hematuria. Regarding pre and post contrast CT images what is the Bosniak class of the left renal cystic mass?

A 45-year-old female patient with microscopic hematuria. Regarding pre and post contrast CT images and post contrast T1W MR image what is the Bosniak class of the right renal cystic mass?

A 35-year-old male patient with abdominopelvic pain. Regarding pre and post contrast CT images and illustrated CT image what is the Bosniak class of the cystic mass in the ectopic kidney?

On abdominal CT images of a 45-year-old man, there is a 55 mm partially exophytic cystic mass in the lower pole of the right kidney that contains a 3 mm enhancing nodule with acute angles to the wall. What is the Bosniak class according to the Bosniak classification version 2019?

On abdominal CT images of a 55-year-old man, there is a 40 mm partially exophytic cystic mass in the upper pole of the left kidney that contains a 4 mm enhancing nodule with obtuse angles to the wall. What is the Bosniak class according to the Bosniak classification version 2019?

A 50-year-old male patient with abdominal pain. Regarding pre and post contrast CT images what is the Bosniak class of the left renal cystic mass?

A 42-year-old female presents for local staging of biopsy-proven cervical adenocarcinoma. MRI shows a barrel-shaped lesion in the cervix that breaches the cervical stromal ring and extends into the parametrium. There is no extension to the pelvic side wall and there are no suspicious nodes on imaging. What is the most likely management pathway?

A 35-year-old female presents for local staging of biopsy-proven squamous cell carcinoma of the cervix. MRI shows a 1.5 cm intermediate T2 signal intensity lesion in the anterior lip of the cervix at the squamocolumnar junction with no involvement of the upper vagina. In addition, there is a rounded 9 mm short-axis left obturator node that also returns an intermediate T2 signal. What is the International Federation of Gynecology and Obstetrics (FIGO) stage based on imaging?

Which ultrasound artifact occurs as a result of refraction?

A 12-year-old boy with a history of intellectual disability comes to the emergency department because of headaches and more frequently occurring seizures. Brain imaging (CT scan and MRI) shows a heterogeneous intraventricular mass measuring about 18 mm near the foramen of Monro,  with internal calcifications and marked contrast enhancement. Subependymal nodules and cortical tubers are the other imaging findings. Which of the following is the most likely diagnosis?

A 7-year-old boy with a history of intellectual disability and seizures comes to the emergency department because of headaches and more frequently occurring seizures. CT scan of the brain shows subependymal nodules with calcification, cortical foci with loss of the grey-white matter distinction, and a nodule partially obstructing the foramen Monro. Which of the following is the most likely diagnosis?