23 results
Interstitial pneumonias
An acute reticular pattern is most frequently caused by interstitial edema due to cardiac heart
pneumonia: Viral PCP ... This was a PCP-infection ... #Clinical #Radiology ... #CXR #Acute #Interstitial ... #Pneumonia #PJP
Crazy Paving on Chest CT
 • Thickened interlobular septa in a background of diffuse GGO's.
 •
Paving on Chest CT ... pulm hge, ARDS, PJP ... #Paving #Sign #CT ... #Lung #Pulmonary ... #diagnosis #radiology
On the left an immunocompromised patient with PCP.
The CT findings are diffuse ground-glass opacification.
The findings are
The CT findings ... not specific for PCP ... clinical setting PCP ... #Clinical #Radiology ... #CTChest #PJP #
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
Attenuation on Chest CT ... seen on a chest CT ... DDx: BO, CTEPH, PJP ... #Lung #Pulmonary ... #diagnosis #radiology
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
Sign on Chest CT ... bronchogenic Ca, PJP ... Crescent #Sign #CT ... #Lung #Pulmonary ... #diagnosis #radiology
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Sign) on Chest CT ... DDx: COP, IFI, PJP ... Reverse #Halo #Sign #CT ... #Lung #Pulmonary ... #diagnosis #radiology
A 50 yo F with a history of poor dentition presents to the ED with fever
already seen her PCP ... A CXR is done. ... consistent w/ lung ... abscess #Clinical #Radiology ... #CXR #ChestXRay
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... densities iin the left lung ... On the CT cavitation ... #Clinical #Radiology ... #CXR #CTChest #
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
• CD4 < 200: PCP ... failure, COPD, Lung ... Evaluation: Imaging (CXR ... +/- High res CT ... TB PCR sputum, PCP
Mucoid impaction
Mucus plugs or mucoid impaction can mimick the appearance of lung nodules or a mass.
Sometimes
appearance of lung ... structures in the right lung ... CT demonstrated ... #Clinical #Radiology ... #CXR #CTChest #