title: Nonresolving pneumonia and mimics of pneumonia.
abstract: Physicians caring for patients with community-acquired pneumonia are often faced with the dilemma of how to approach a patient with slowly resolving or even nonresolving pneumonia. When the radiograph has failed to resolve by 50% in 2 weeks or completely in 4 weeks, the pneumonia should be considered to be nonresolving or slowly resolving. The causes of a nonresolving pneumonia and an approach to the work-up are presented.
authors.affiliation: Division of Pulmonary and Critical Care, Albert Einstein Medical Center, Thomas Jefferson University  School of Medicine, Philadelphia, Pennsylvania, USA.
authors.forename: L
authors.initials: L
authors.lastname: Rome
authors.forename: G
authors.initials: G
authors.lastname: Murali
authors.forename: M
authors.initials: M
authors.lastname: Lippmann
mesh_terms: D001984:Bronchial Neoplasms / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000628:therapy; D017714:Community-Acquired Infections / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000382:microbiology / Q000628:therapy*; D015897:Comorbidity; D018549:Cryptogenic Organizing Pneumonia / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000628:therapy; D003937:Diagnosis, Differential; D006801:Humans; D011014:Pneumonia / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology / Q000382:microbiology / Q000628:therapy*; D012307:Risk Factors; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D017211:Treatment Failure; D014481:United States / Q000453:epidemiology