Pulmonary carcinoid presenting with persistent pneumothorax.

Lung neuroendocrine tumours (Lung NETs) are a rare group of pulmonary neoplasms often characterised by insidious clinical behaviour. Lung NET account for ~1%-2% of all lung malignancies in adults and 30% of all NETs. Incidence ranges from 0.2 to 2/100 000 population per year. While some patients may be asymptomatic, others may present with obstructive symptoms due to mass effect. Incidence of spontaneous pneumothorax as a complication of lung neoplasms is rare (0.05%-1.4% of all pneumothoraces). In this report, we present a case of recurrent pneumothorax due to Lung NET that was refractory to conservative management. We also discuss the diagnostic methods as well as surgical management approach, which is considered the treatment of choice in such tumours.