Interlobular Septal Thickening CHF Acute CHF50 year old female with diabetes, chronic renal failure with congestive heart failure. CT in the coronal plane shows diffuse ground glass changes, Kerley B lines at the right base, Ashley Davidoff MD TheCommonvein.net 50-003-CT 50 year old female with diabetes, chronic renal failure with congestive heart failure. CT in the coronal plane shows diffuse ground glass changes, Kerley B lines peribronchial cuffing in the right upper lobe and right lower lobeAshley Davidoff MD TheCommonvein.net 50-004-CT 50 year old female with diabetes, chronic renal failure with congestive heart failure. CT in the axial plane shows diffuse ground glass changes, thickening of the interlobular septa, centrilobular nodules peribronchial cuffing mosaic attenuation in the right lower lobe, associated with a complex right sided effusionAshley Davidoff MD TheCommonvein.net 50-010-CT 50 year old female with diabetes, chronic renal failure with congestive heart failure. CT in the coronal plane shows diffuse ground glass changes, thickening of the interlobular septa, and centrilobular nodules Ashley Davidoff MD TheCommonvein.net 50-007-CT Amyloidosis Diffuse alveolar-septal amyloidosisCT scan in the axial projection at the base of the lungs show many features of amyloidosis including lung nodules (white arrowheads) and infiltrates (b), and diffuse deposition within the alveolar septa (red arrowheads, c) and centrilobular nodules(yellow arrow c)Ashley Davidoff MD Boston Medical CenterTheCommonVein.net septal-amyloidosis-001b Nodular Thickening Along the Vein – Miliary TB Micronodules Right Upper Lobe68 year old female presented with malaise night sweats weight loss Quantiferon gold positive, with a past history of treated TB in her native country as a child. Axial CT images through the upper lobe shows a miliary pattern of disease affecting interlobular septa, centrilobular and tree in bud nodular patterns. Bronchoscopy isolated Mycobacterium complex. She was treated with good resultAshley Davidoff MD TheCommonVein.net mycobacterium-complex-TB-68-001 Micronodules Right Upper Lobe68 year old female presented with malaise night sweats weight loss QuantiFeron gold positive, with a past history of treated TB in her native country as a child. Axial CT images through the upper lobe shows a miliary pattern of disease affecting interlobular septa, centrilobular and tree in bud nodular patterns. Bronchoscopy isolated Mycobacterium complex. She was treated with good resultAshley Davidoff MD TheCommonVein.net mycobacterium-complex-TB-68-008 Sarcoidosis CT OF THE SECONDARY LOBULE WITH LYMPHOVASCULAR NODULES IN INTERLOBULAR SEPTA (blue arrows) AND CENTRILOBULAR REGION (red arrows)SARCOIDOSIS, ACTIVE – ALVEOLAR FORMSARCOIDOSIS, ACTIVE – ALVEOLAR FORM48-year-old previously well presented with dyspnea and initial CXR showed an infiltrate at the right base, and clinically resolved. He presented a year later with right chest pain and low grade ever and the CXR showed patchy opacities in the LUL and in the RLLA subsequent CT showed LUL nodular opacities and subpleural rim of consolidation in the LUL and more prominently at both lung bases, associated with significant mediastinal adenopathy. Lymphovascular nodularity was noted in the bronchovascular bundles as well as in the interlobular septa, consistent with sarcoidosisCXR and CT 4 years later showed almost complete resolution of the parenchymal findings and the CT findings except for minimal reticulation and scarring in the subpleural regionsAshley Davidoff MD CT WITH SUBPLEURAL AND LYMPHOVASCULAR NODULES IN THE RIGHT UPPER LOBE – INTERLOBULAR SEPTA AND CENTRILOBULARSARCOIDOSIS, ACTIVE – ALVEOLAR FORM48-year-old previously well presented with dyspnea and initial CXR showed an infiltrate at the right base, and clinically resolved. He presented a year later with right chest pain and low grade ever and the CXR showed patchy opacities in the LUL and in the RLLA subsequent CT showed LUL nodular opacities and subpleural rim of consolidation in the LUL and more prominently at both lung bases, associated with significant mediastinal adenopathy. Lymphovascular nodularity was noted in the bronchovascular bundles as well as in the interlobular septa, consistent with sarcoidosisCXR and CT 4 years later showed almost complete resolution of the parenchymal findings and the CT findings except for minimal reticulation and scarring in the subpleural regionsAshley Davidoff MD