ABSTRACT
The main organisms causing cystic lesions following pneumonia are S. aureus, Klebsiella spp., P. aeruginosa and Mycobacterium spp. It is important to know the causative organism as well as to follow up with another X-ray in 6 weeks’ time. Congenital adenomatous malformation of the lung is another diagnosis that should be considered if frequent infections occur on the same side. Bronchiectasis is rarely seen these days, but suspicion should be raised if frequent chest infection occurs. Chest CT can be very helpful in these cases, as can bronchoscopy (especially if a foreign body is suspected).
