23rd September 2020

A tall 19-year old male is brought to the emergency department

A tall 19-year old male is brought to the emergency department. He complains of acute onset dyspnoea when he was walking home and explains he has chest pain with breathing. Examination reveals reduced chest expansion, diminished breath sounds and hyperresonant percussion on the left side.

Select the SINGLE most likely diagnosis from the list below. Select ONE option only.