This case demonstrates the Hampton hump sign with a subsequent CTPA confirming the diagnosis of pulmonary emboli with lung infarction in the area corresponding to the left lower lobe peripheral opacity on chest x-ray.

Risk factors for pulmonary embolism in this patient were:

• recent long overseas flight
• smoking
• oral contraceptive pill

A subsequent ultrasound confirmed the presence of a unilateral lower limb DVT in the right peroneal and popliteal veins.

The patient was commenced on a factor Xa inhibitor anticoagulant medication, smoking cessation encouraged and the oral contraceptive pill was ceased.