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Fig. 2 | Surgical Case Reports

Fig. 2

From: Squamous cell carcinoma of the lung showing a ground glass nodule on high-resolution computed tomography associated with pneumoconiosis: a case report

Fig. 2

Histopathological findings of the resected specimen. a The loupe image of the tumor. The inset shows an immunohistochemistry for p40 (×200), which was positive in the tumor cells. b A low-power view (×40) and c a high-power view (×200) of the area of carcinoma in situ. Tumor cells were spread along the alveolar wall. The basement membrane of the alveolar wall remained intact. d A low-power view (×40) and (e) a high-power view (×200) of the area in which carcinoma in situ and invasive carcinoma (arrows) coexisted. f A low-power view (×40) and g a high-power view (×200) of the area with invasive carcinoma. Stromal tumor cell invasion and stromal collagen fiber were observed. All the pictures are Hematoxylin and eosin stain except the immunohistochemical staining in the inset of a

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