Fig. 6

Pathological findings of the metastatic tumor. The tumor was composed of pleomorphic and polynuclear dyskaryotic cells (hematoxylin and eosin stain) (a). Mesenchymal hamartoma-like lesions were partially seen (hematoxylin and eosin stain) (b). The cytoplasm of the polynuclear dyskaryotic cell contained eosinophilic globules that were diastase-resistant PAS positive (PAS stain) (c). Immunohistochemically, the tumor was positive for α1-antitrypsin (d)