PJP:
Although up to 90% of chest radiographs in patients with Pneumocystis pneumonia are abnormal, appearances are often non-specific. Between 10-15% of patients have normal chest radiographs and close to 30% have non-specific or inconclusive findings
Septic emboli: meist S.aureus; von zB Klappenendokarditis, infizierter TVT, peripheren (zB Haut-)Entzündungen
Rundpneumonie: bei Kindern, weil Kohn'sche Poren und Lambert-Kanäle nicht ausgebildet sind. Meist durch Streptokokken