Which imaging feature is most indicative of Langerhans cell histiocytosis (LCH) in the lungs?

Which of the following bones undergoes fatty marrow conversion first? 

Which tumour is the most common underlying cause of patients with autoimmune encephalitis?

As a general rule, patients with antibodies causing autoimmune encephalitis (limbic encephalitis) which target intracellular antigens are more likely to...

A 55-year-old woman, previously well, presents with 4-month history of rapid decline in cognitive function. She is imaged with an MRI.  What is the most likely diagnosis?

Which of the following would be in keeping with a “myeloma defining” focal lesion on WB-MRI?

Which of the following is NOT a cause of diffuse bone marrow hypercellularity?

A 9 year old boy from South Sudan presents with a large pelvic mass and multiple enlarged abdominal and pelvic lymph nodes. A lymph node is biopsied, with histopathology demonstrating a high-grade B-cell lymphoma in keeping with Burkitt lymphoma. Which one of these parasites is associated with development of this condition?

Which immunoglobulin is most commonly produced in multiple myeloma?

Which of the following is most commonly involved in Langerhans cell histiocytosis in children?

What is the most common clinical manifestation of CNS involvement in Langerhans cell histiocytosis?

Which is the most commonly involved bone or group of bones in Langerhans cell histiocytosis in children?

Which of the following is characterised as a histiocytosis?

An accentuated vertical trabecular pattern within a single lumbar vertebral body is most indicative of which pathology?

Which of these findings is not typically seen in pulmonary lymphoproliferative disease?

An incidental, solitary hypodense splenic lesion (HU>20) is demonstrated on a staging CT for rectal cancer. No other extra-colonic finding on is demonstrated on the CT. The surgical team ask for an image-guided biopsy. What would be the most appropriate next step?

Which of the following is NOT an underlying aetiology of kernicterus?

Which patient has rheumatoid arthritis?

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?

Which of the following is the primary risk factor for the development of breast implant-associated anaplastic large cell lymphoma?