Which of the following conditions is associated with myelopathy involving the anterior horns of the spinal cord?

Which of the following is the most common manifestation of radiation-induced heart disease?

Lumbar radiographs in a 65-year-old male with lower back pain reveal an indistinct margin of the superior endplate of L4. Which of the following is most likely to account for this?

Leptomeningeal disease is more suggestive of which of the following pathologies?

CT images of the chest should normally be acquired with the patient:

Which is NOT TRUE of head and neck paragangliomas?

Which is the most common malignancy that causes distal appendicular skeletal metastases? 

A patient presents with a week of progressive upper followed by lower limb neurological symptoms. MRI reveals a longitudinally extensive T2 hyperintense cord lesion between the C6 and T5 levels, with a few scattered focal relative hyperintensities within the abnormal region at the T1 level. The most likely cause is...

Which pattern of lung cysts on CT would be expected in pulmonary Langerhan's cell histiocytosis?

What is the most likely history for this patient?

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

Of cutaneous/subcutaneous metastases, which primary is the most common in males? 

Of cutaneous/subcutaneous metastases, which primary is the most common in females? 

Which patient has Langerhans cell histiocytosis? 

This 30-year-old male has been referred from the respiratory clinic with a history of sarcoidosis. A PA chest x-ray was taken. What stage is present? 

Neonatal chest x-ray with no further clinical information provided. What is the most likely diagnosis?

12-year-old with wrist pain. What is the most likely diagnosis?

What is the most likely diagnosis?

For non small cell lung cancer, which of the following is the most common site of metastases? 

Which of the following is the most common cause of insufficiency fractures?