Fig. 17.

A 16-year-old boy with right leg pain due to deep vein thrombosis and pulmonary embolism, without respiratory symptoms, whose father had COVID-19. a An axial T2-weighted MR image shows a swollen right thigh, with oedema of the quadriceps muscle. Thrombus in the superficial femoral vein is seen as a distended vessel with absent flow void and increased signal intensity (arrow). b A coronal contrast-enhanced chest CT, performed due to tachycardia, demonstrates multiple emboli (arrows) within the segmental arteries of the lower lobes. c An axial contrast-enhanced CT in lung window shows small foci of ground glass opacity (arrow) with mosaic attenuation