Pulmonary infection characterized by predominance of macrophages involving predominantly small bronchioli and sparing the large bronchioli is most typical of infection caused by
A) Haemophilus influenzae
B) Staphylococcus aureus
C) Streptococcus pneumoniae
D) Pseudomonas aeruginosa
E) Legionella pneumophila

Question

Quizplus · Accepted Answer

Legionella pneumophila affects primarily small bronchioli; thus, inflammations tend to organize and cause bronchiolar scarring. The exudate contains predominantly macrophages, which contain the pathogens, and less neutrophils.

Pulmonary Infection Characterized by Predominance of Macrophages Involving Predominantly Small