Which of these images most likely represents a case of pulmonary Langerhans cell histiocytosis?

The most common location of origin of carcinoid tumors is?

What is the most likely cause of this acute cerebral infarct?

In a child with suspected neuroblastoma, an ultasound confirms a right supra-renal mass. An MRI of the abdomen and pelvis is performed to further assess the tumor. What is the most important additional imaging that should be performed.

A 45-year-old man presents with complaints of abdominal distension. He has a history of perforated appendix followed by emergency appendectomy a few years back which showed mucinous cystadenoma on histology. His current single CT coronal image is presented. What is the most likely diagnosis?

Which of the following signs of sigmoid volvulus is shown on this plain abdominal radiograph?

Splenic sequestration tends to occur more often in which patients?

A 65-year-old female presents with complaints of fever, watery diarrhea and abdominal pain. She gives a history of recent hospitalization due to COVID-19 pulmonary infection. Her CT scan shows pancolitis with mild ascites and pericolic fat stranding. The small bowel appears normal. What is the most likely diagnosis?

All the following points may be the etiologies of bilateral and symmetrical sacroiliitis EXCEPT...

In a patient with infective endocarditis, which of the following locations is the most likely location of a mycotic (infectious) aneurysm?

Which of the following is a potential complication of gallbladder agenesis?

A 55-year-old female presented to the emergency department complaining of right iliac fossa pain. Subsequently, she underwent a CT scan abdomen which revealed acute appendicitis. A single CT scan image is provided.

Which of the following signs of acute appendicitis is shown on the provided image?

What is the most frequent perianal fistula according to the Parks surgical classification?

What is the most frequent location of the tip of the appendix? 

What systemic condition, often also treated with steroids, is found in approximately 50% of patients with giant cell arteritis (GCA)?

Which of the following factors is NOT considered as a risk factor for hepatic abscess?

All the following may be seen on a plain abdominal radiograph in a patient with cecal volvulus EXCEPT...

Which is the characteristic radiology finding in lymphangioleiomyomatosis?

What is the most common type of hiatus hernia?

All the following features may be seen on CT enteroclysis in celiac disease EXCEPT...