Faces of Pneumonia Necrotizing Necrotizing Pneumonia With Abscesses CT Cavitating Pneumonia with Abscess Formation54-year-old female presents with a cough, fever and leukocytosis. CT in the axial plane shows a cavitating pneumonia (b, white arrowheads) with large abscess and air-fluid level (b, yellow arrowheads), and multiple small intraparenchymal abscesses (b, orange arrowheads)Ashley Davidoff MD TheCommonVein.net 31591cL TB Necrotizing Pneumonia CT –TB Necrotizing Pneumonia Left Upper Lobe38-year-old male with HIV presents with cough CT scan in the axial plane shows a focal necrotizing consolidation in the left upper lobe.Lab tests confirmed a diagnosis of TBAshley Davidoff MD TheCommonVein.net 256Lu 136098 CT –TB Necrotizing Pneumonia Left Upper Lobe38-year-old male with HIV presents with cough CT scan in the axial plane shows a focal necrotizing consolidation in the left upper lobe. Regional lymphadenopathy in the mediastinum is notedLab tests confirmed a diagnosis of TBAshley Davidoff MD TheCommonVein.net 256Lu 136099 CT –TB Necrotizing Pneumonia Left Upper Lobe38-year-old male with HIV presents with cough CT scan in the axial plane shows a focal necrotizing consolidation in the left upper lobe. Reginal lymphadenopathy in the mediastinum is notedLab tests confirmed a diagnosis of TBAshley Davidoff MD TheCommonVein.net 256Lu 136104 Cavitating Left Lower Lobe Pneumonia with Pseudoaneurysm (PSA) Cavitating Left Lower Lobe Pneumonia30-year-old female with a history of IVDU presents with a fever and hemoptysis.CT in the axial plane shows a cavitating pneumonia in the anterior segment of the left lower lobe. There are groundglass changes surrounding the consolidation representing either edema or hemorrhageAshley Davidoff MD TheCommonVein.net 281Lu 136524 Cavitating Left Lower Lobe Pneumonia with Pseudoaneurysm (PSA)30-year-old female with a history of IVDU presents with a fever and hemoptysis.CT in the sagittal plane shows a cavitating pneumonia in the anterior segment of the left lower lobe. A focally dilated artery in the consolidation (red arrowheads a, and b) represents a mycotic aneurysm. There are groundglass changes surrounding the consolidation representing either edema or hemorrhageAshley Davidoff MD TheCommonVein.net 281Lu 136530cL Cavitating Left Lower Lobe Pneumonia with Mycotic Pseudoaneurysm (PSA)30-year-old female with a history of IVDU presents with a fever and hemoptysis.CT in the axial plane shows a cavitating pneumonia in the anterior segment of the left lower lobe (a,b white arrowheads). There are groundglass changes surrounding the consolidation representing either edema or hemorrhage (b pink arrowhead). A focally dilated artery in the consolidation (red arrowheads (c, and d) represents a mycotic aneurysmAshley Davidoff MD TheCommonVein.net 281Lu 136526cL Cavitating Left Lower Lobe Pneumonia with Pseudoaneurysm (PSA) Pre and Post Embolization30-year-old female with a history of IVDU presents with a fever and hemoptysis.Selective angiography of the anterior subsegmental artery of the left lower lobe shows a mycotic pseudoaneurysm (a,b red arrowhead) in the region of a cavitating pneumonia with noted air filled cavity (yellow arrowheads b) reflecting cavitating pneumonia. Images c and d show the embolization coil ((white arrowhead in c and d) with obliteration of the PSA.Ashley Davidoff MD TheCommonVein.net 281Lu 136532cL Cavitating Pneumonia with Halo Sign 40 year old male with a cavitating pneumonia with surrounding ground glass likely reflecting hemorrhage (halo sign)Ashley Davidoff MD TheCommonVein.net