This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pediatrics
Pneumatoceles on chest radiograms in a child with pneumonia are seen in infection 
Select and explain. 
A. Staphylococcus, B. Pneumococcus, C. Streptococcus, D. Haemophilus influenzae
A: Staphylococcus
Answer: A: Staphylococcus 
Explanation: staphylococcal pneumonia : pneumonic process is diffuse but soon lesions suppurate and cause bronchoalveolar destruction multiple microabscesses erode the bronchial wall and discharge their contents in bronchi. several pneumatocoeles form and they fluctuate in size over time ultimately resolving and disappearing in few weeks to months in Xray pneumatocoeles persist as thin walled cysts.they are also seen in klebsiella pneumonia Ref : ESSENTIAL PEDIATRICS,O.P.GHAI, PG NO:353,7thedition