Are disease-related pulmonary perfusion abnormalities detectable in COVID-19 patients? Suspicious findings in a lung perfusion SPECT performed for ruling out classical pulmonary embolism

perfusion SPECT images, transaxial and coronal slices in the upper row, sagittal slice and three-dimensional rendering in the lower row. Small peripheral uptake defects are present (white arrows and arrowhead). Right panel: CT images, same slice disposition, plus scout image (lower right corner). The red arrows point to the parenchymal areas corresponding to the perfusion defects