Thoracic Infections in Immunocompromised Patients

Abstract

Purpose of Review

The purpose of this review is to summarize the imaging findings of thoracic infections occurring in immunocompromised patients. Lung infection remains one of the most common complications in immunocompromised patients and is one of the major contributors to morbidity and mortality. Imaging examinations are frequently performed in immunocompromised patients suspected of having chest infection. This review primarily illustrates the CT findings of lung infection. Early detection is important because these patients can rapidly develop fulminant disease.

Recent Findings

The imaging findings of a variety of pulmonary infections have been described, and it is well recognized that there is significant overlap of imaging findings across a variety of infections. However, the presence or absence of certain findings can favor one type of infection over another, especially when clinical factors are taken into consideration.

Summary

Radiologists play a central role in identifying chest infections in immunocompromised patients. Knowledge of the association between specific infections and specific types of immunodeficiency can aid the radiologist in providing a focused differential diagnosis. Furthermore, knowledge of noninfectious complications such as drug reaction or neoplasm can help guide patient management.

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