Which of the following features describes the most common type of the oseophageal atresia?

What is the most common type of head and neck paraganglioma?

All the following are considered as predisposing risk factors for contrast-induced nephropathy (CIN) EXCEPT...

The following can be the cause of an elbow joint effusion EXCEPT...

All the following are considered as predisposing factors for Achilles tendon tear EXCEPT...

Regarding the prehepatic causes of portal hypertension, which of the following is FALSE? 

What is the most common cause of chronic obstructive pulmonary disease (COPD)?

A 55-year-old man presents with night sweats, productive cough, dyspnea, and general malaise. What is the most likely diagnosis?

75-year-old male with progressive dyspnea in recent years. He was a smoker and a retired construction worker. What is the most likely diagnosis?

A 50-year-old male with a history of cirrhosis underwent upper GI endoscopy. Spot image from the Gastrografin swallow study is presented. What is the most likely diagnosis?

Which statement regarding aortic penetrating atherosclerotic ulcers (PAU) is FALSE?

Which of these lung diseases DOES NOT predominate in the upper lobes?

This 70-year-old woman with a history of breast cancer 10 years ago presented with progressive dyspnea. Follow-up chest CT scans are shown below. What is the most likely diagnosis?

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

Which statement regarding aortic intramural hematoma (IMH) is FALSE?

How would you classify this type of aortic dissection?

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

A thymoma is found to invade through the capsule into adjacent mediastinal fat or pleura. What is the stage according to the Masaoka staging system?

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?