PMC4712427_01
Histopathologic examination revealed (A) polygonal epithelioid cells and spindle cells with abundant eosinophilic cytoplasm arranged in nodular aggregates with central necrosis (H&E, x200). (B) Infiltration of metastatic proliferating epithelioid and spindle cells are observed in the wall of the bullae (H&E, x200).
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A diagnostic biopsy revealed mild to moderate pleomorphic epithelioid and spindle cells arranged in nodular aggregates (Fig. 1A). His biopsy specimen are observed clusters of malignant epithelioid cells (Fig. 1B).
Chest computed tomography scan showing (A) massive pleural effusion on the left lung and (B) a small pneumothorax on the right lung (arrow). (C) Chest radiograph showing a large pneumothorax on the right lung and the tube drainage placed on the left lung because of the pleural effusion. (D) Chest axial computed tomography scan showing a large pneumothorax with small cystic (arrowheads) and nodular lesion on the right lung, and pleural thickening and effusion on the left lung.
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Chest radiography revealed a left pleural effusion, and chest computed tomography (CT) showed a massive pleural effusion on the left lung and a small pneumothorax on the right lung (Fig. 2A and 2B). Chest radiography showed a right pneumothorax, and the chest CT scan demonstrated a right pneumothorax and multiple pulmonary cysts of various sizes (Fig. 2C and 2D).