Empyema CT

Empyema Microchapters
Patient Information
Overview
Classification Subdural empyema Pleural empyema
Differential Diagnosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

CT

On Computed tomographic scan, empyema is seen as a lung mass whose cavity is regular with smooth and regular lumen and well-defined boundary. The shape changes with change in patient's position. Mass on CT scan may resolve on antibiotics. The split pleura sign on CT scan is present (most reliable sign to differentiate empyema from lung abscess where it is absent).