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Fig. 3 | Insights into Imaging

Fig. 3

From: Differential diagnoses of COVID-19 pneumonia: the current challenge for the radiologist—a pictorial essay

Fig. 3

ag COVID-19 pneumonia differential diagnosis: cardiovascular pathologies. HRCTs of patients presenting with interstitial oedema (a) and interstitial-alveolar oedema (b). In a, there is extensive smooth thickening of interlobular septa (white circles in a) coexisting with ground-glass opacities (white arrow in a); in b, confluent perihilar consolidations (black arrows in b) coexist with crazy paving pattern (white arrows in b) and bilateral pleural effusions. HRTC (c, e) and AngioCT (d) in patients affected by APE: bilateral emboli (white arrows in d) caused two pulmonary infarcts manifesting, respectively, as an area of crazy paving (black arrowheads in c) and a consolidation with a hypodense core (“reversed halo sign”, white circle in e). HRTC of a patient affected by Granulomatosis with polyangiitis (f, g) showing massive centroparenchymal DAH (f) and an excavated nodule (white arrow in g)

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