Pulmonary lymphangioleiomyomatosis--a silent killer?

Pulmonary lymphangioleiomyomatosis (LAM) is a rare disorder presenting with remarkable features like recurrent pneumothorax or chylothorax, usually in young women. We report a case of sporadic LAM who presented with nothing but recent onset exertional dyspnoea and it was this unobtrusive presentation that led to delay in diagnosis.