Faces of Chronic Eosinophilic Pneumonia Chronic Eosinophilic Pneumonia Affects the Alveoli and Alveolar Septal Interstitium Chronic eosinophilia is characterised by alveolar filling with eosinophils and inflammatory exudates(a) and interalveolar interstitial thickening, (overlaid in red in b). The infiltrates are classically peripherally positioned, usually upper lobes, more commonly bilateral but can be unilateral, and manifest as consolidation and or ground glass opacities. The CT shows bilateral peripheral consolidations in the upper lobesAshley Davidoff MD The CommonVein.net lungs-0765 Ashley Davidoff TheCommonVein.net Upper Lobe Peripheral Infiltrates and Interlobular Septal Thickening in the RULCT scan in the coronal performed 6 months ago at the time of clinical presentation shows upper lobe predominant peripheral infiltrates with small left lower lobe peripheral infiltrate Subsequent diagnosis by BAL of chronic eosinophilic pneumonia (CEP)Ashley Davidoff TheCommonVein.net Upper Lobe Peripheral Infiltrates with Air Bronchograms, and Interlobular Septal ThickeningCT scan in the coronal performed 6 months ago at the time of clinical presentation shows upper lobe predominant peripheral infiltrates more prominent in the left upper lobe. Subsequent diagnosis by BAL of chronic eosinophilic pneumonia (CEP) was madeAshley Davidoff TheCommonVein.net Upper Lobe Peripheral Infiltrates Centrilobular Nodules, and Interlobular Septal ThickeningCT scan in the coronal performed 6 months ago at the time of clinical presentation shows upper lobe predominant peripheral infiltrates more prominent in the left upper lobe. Subsequent diagnosis by BAL of chronic eosinophilic pneumonia (CEP) was madeAshley Davidoff TheCommonVein.net CT coronal view of a patient with CeP demonstrating peripheral con solidation, with alveolar opacities asymmetrically more in the right upper lobe. Abbreviation: CeP, chronic eosinophilic pneumonia.Crowe M et al Therapeutics and Clinical Risk Management Volume 15:397-403 March 2019https://www.researchgate.net/publication/331691288_Chronic_eosinophilic_pneumonia_clinical_perspectives Follow up CT 2 weeks later shows persistent dense bibasilar consolidationsAshley Davidoff MD TheCommonVein.neteosinophilic-pneumonia-011