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Insights into Imaging
Fig. 45 | Insights into Imaging

Fig. 45

From: Mimics in chest disease: interstitial opacities

Fig. 45

Chronic thromoboembolic pulmonary arterial hypertension. HRCT at the level of the upper lobes exhibits a “mosaic attenuation pattern” with patchy areas of increased attenuation within which large calibre vessels are seen representing the hyperperfused areas compared with the areas of decreased attenuation with small calibre vessels, which represent the hypoperfused areas (from [45])

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