Distinct Profiles of CD163-Positive Macrophages in Idiopathic Interstitial Pneumonias.

Background: The types of cells most significantly linked to individual subtypes of idiopathic interstitial pneumonias (IIPs) remain unclear. Few studies have examined CD163 macrophages in IIPs.

Objective: We retrospectively aimed to immunohistochemically characterize the CD163 macrophages in IIPs.