PMC6389774_01
Contrast-enhanced Thorax CT showed hypodense soft-tissue lesion in the size of 28 x 16 mm closely located to the right inferior pulmonary vein.
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Contrast-enhanced Thorax CT showed a well-defined, hypodense soft-tissue lesion in the size of 28 x 16 mm closely located to the right inferior pulmonary vein (Fig. 1).
HE stain shows sclerosing papillary structures are covered by surface cells (50X).
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Immunohistochemistry analysis of the resected lesion showed positive (+) with TTF-1, bcl-2 and pansitokeratin, weakly (+) with Napsin-A and CD99 and negative with CD34 (Fig. 2, Fig. 3) consistent with sclerosing pneumocytoma.