A 65-year-old male has a CT of his thorax which shows an incidental finding of a homogenous, slightly lobulated anterior mediastinal mass measuring 5 cm. There are no enlarged lymph nodes within the thorax. Which of these is most likely?

This 65-year-old woman with rheumatoid arthritis presents with progressive dyspnea for the last few months. Non-contrast chest CT is performed. What is the most likely diagnosis?

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

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?

The following are causes of unilateral distal clavicular osteolysis EXCEPT...

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

Which of the following findings is the LEAST LIKELY to be seen in Crohn disease?

Which of the following cause of bowel inflammation is related to a medication?

Which is the nature of small bowel thickening that can be caused by the tyrosine kinase class of chemotherapy?

Which of the following imaging finding is more common in chronic beryllium disease (CBD) compared to sarcoidosis?

A 55-year-old female has multiple aggressive sclerotic vertebral and pelvic bone lesions identified on x-ray. What would be the most likely cause?

When a child is born, the epiphysis is composed of cartilage. As it ossifies it is replaced by bone. What is the correct order of ossification?

A 60-year-old man known for end-stage renal failure. What is the most likely bone disease shown on his lateral skull radiograph?

Which of the following radiopharmaceuticals is used in bone SPECT-CT?

Bone marrow reconversion happens in the following EXCEPT...

What is the most common cause of intussusception in adults? 

Which of the following features is NOT true about immunodeficiency-associated CNS lymphomas compared to sporadic primary CNS lymphoma? 

Which of the following causes inferior rib notching? 

Patients with alpha-1-antitrypsin deficiency are at increased risk of which of the following cancers?