PMC4898296_01
54-year-old HIV-positive man with hypervascular pseudolesion in segment IV A and vein of Sappey from SVC obstruction. Axial CT images demonstrate hypervascular pseudolesion (arrow) in the segment IV A with enhancing vein of Sappey (arrowhead). Also note collateral recruitment of azygos and hemiazygos veins in addition to cutaneous collaterals. There are bilateral, right-greater-than-left pleural effusions..
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Figure 1C). Frontal and lateral chest radiographs performed subsequently revealed a right upper-lobe mass with right paratracheal lymphadenopathy (Fig. 2, A, B).
54-year-old HIV-positive man with hypervascular pseudolesion in segment IV A and vein of Sappey from SVC obstruction. Coronal CT image demonstrates hypervascular pseudolesion (arrow) in the segment IV A. The vein of Sappey was best visualized on the axial images.
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Figure 1C). Frontal and lateral chest radiographs performed subsequently revealed a right upper-lobe mass with right paratracheal lymphadenopathy (Fig. 2, A, B).
54-year-old HIV-positive man with hypervascular pseudolesion in segment IV A and vein of Sappey from SVC obstruction. Frontal (A) and lateral (B) chest radiographs demonstrate right upper lobe mass (arrow) with enlarged right paratracheal lymph nodes (arrowhead) and mass effect on the SVC.
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54-year-old HIV-positive man with hypervascular pseudolesion in segment IV A and vein of Sappey from SVC obstruction. Axial (A) and coronal (B) CT images through the chest demonstrate a mediastinal mass obstructing the superior vena cava (arrow) with extensive prominent collaterals in the left chest wall and scapular region.
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On histopathology, numerous small highly atypical cells with high nuclear-cytoplasmic volume ratios consistent with small-cell carcinoma of the lung were seen on the hematoxylin and eosin stain (Fig. 4).