Figure 1.

(A) CT of the chest revealed a round non-homogeneous parenchymal neoformation (arrow) that was ~1.2 cm in diameter and located in the anterius segment of the left upper lobe of the lung. The lesion was sharply demarcated. (B) The contrast-enhanced CT revealed minimal contrast-enhanced areas, and the lesion did not include any calcifications or fat. There was no sign of lobation and speculation. Neither the mediastinal nor hilar lymph nodes were observed to be enlarged in the (B) mediastinal and (C) pulmonary windows. CT, computed tomography.