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

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 (are) considered as the aetiologies of hepatic infarction?

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

What is the most common primary tumour of sclerotic bone metastases?

A 40-year-old man presented with a few days' history of left orbital pain and visual loss. An MRI was performed. What is the most likely diagnosis shown on this selected enhanced coronal T1 FS image?

Based on this T2 weighted fat sat image, what is the most likely diagnosis of this solitary solid splenic lesion?

Which of the following entities is LEAST likely to present as a lobulated pachymeningeal mass?

Looser zones, also called Umbauzonen or Milkman lines, are characteristically seen in which of the following conditions?

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 dyspnoea for the last few months. Non-contrast chest CT is performed. What is the most likely diagnosis?

A 25-year-old male presented with a left neck lump. CT was performed. What is the most likely diagnosis?

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 most likely cause of this skull appearance?

A 10-year-old boy presents with a large anterior mediastinal mass. The mass displaces the mediastinal arteries and veins and there is vascular invasion into the superior vena cava. Which of the following tumours is the most likely?

Which of the following is considered the most common aetiological factor for splenic infarction in young patients ?

What causative agent is responsible for COVID-19? 

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

A 70-year-old female presents with hand pain. A PA hand and wrist x-ray is shown. What is the most likely diagnosis?

Which one of these conditions is associated with extramedullary haematopoiesis?