“Pulmonary target sign” as a diagnostic feature in chest computed tomography of COVID-19

Figure 1 “Pulmonary target sign” in 4 different cases varies according to the location of the lesions. A and B: Peripheral location; C and D: Central location.

Figure 2 Variants of “pulmonary target sign” in 4 different cases. A: “Pulmonary target sign” (PTS) similar to a solitary pulmonary nodule; B: “Rings of Saturn” as a variant of PTS; C and D: PTS with parallel pleural sign.

Figure 3 “Pulmonary target sign” in 4 different patients. A and B: “Pulmonary target sign” (PTS) as a pleural based lesion; C: PTS with incomplete peripheral ring; D: Complete peripheral ring.

Figure 4 “Pulmonary target sign” in 4 different individuals. A, B and C: Basal location of “pulmonary target sign”; D: Apical location.

Figure 5 “Pulmonary target sign” in 4 different cases. “Pulmonary target sign” along with a broncho-vascular bundle.

Figure 6 Laterality of “pulmonary target sign” in 4 different cases. A and B: Multiple unilateral “pulmonary target sign”; C: bilateral lesions; D: Solitary lesion.

Figure 7 Correlation of “pulmonary target sign” with adjacent ground-glass opacities or consolidation. A: Circular adjacent ground-glass opacities (GGO); B and C: Patchy adjacent GGO; D: adjacent patchy consolidation.

Figure 8 “Pulmonary target sign” with coronavirus disease 2019 complications. A: Pneumothorax and pneumomediastinum; B: Pleural effusion; C: Pleural thickening; D: Fibrotic band.