1st April 2022

A 13-year-old boy presents with increasing dyspnoea and tiredness over the last week

A 13-year-old boy presents with increasing dyspnoea and tiredness over the last week. He has also not been eating, and his mother has noticed some weight loss. An hour ago, he deteriorated quite suddenly and started having excessive trouble breathing. On examination, you note that his face and neck are swollen and red, there is a petechial rash across the rest of his body, and he is making a high-pitched inspiratory sound. It is suspected that his current condition is secondary to an acute lymphoblastic leukaemia. What is the most likely diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.