A 2-year-old girl presents with a painless left-sided abdominal mass. She is otherwise well. MRI demonstrates a 7.8 cm mass in the left upper quadrant that crosses the midline and displaces the left kidney inferiorly. It can be seen to be encasing the left renal vein without invading into it. What is the most likely diagnosis?

A 15-year-old boy presents with a 2 month history of non-tender left axillary swelling. Ultrasound demonstrates an enlarged 3.1 cm short axis lymph node. On biopsy, a small number of Reed-Sternberg cells are seen. Which variant of this condition carries the best prognosis?

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

In splenic trauma, the presence of vascular injury with active bleeding confined within the splenic capsule constitutes which grade according to the American Association for the Surgery of Trauma (AAST)?

What is the name given to this radiographic view of the hands?

What causative agent is responsible for COVID-19? 

Which cystic lung disease is often seen in association with Sjögren syndrome?

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

All of the following could be an underlying predisposing factor for this patient, EXCEPT...

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?

The most common pattern of increased FLAIR/T2 signal in autoimmune encephalitis is bilateral asymmetric involvement of the...

Which malignant primary bone tumor is most common in the over 75 years age group?

Which of the following maternal injuries is NOT at increased risk due to the gravid uterus?