Fig. 2
From: Pulmonary carcinoma with metastasis in a long-finned pilot whale (Globicephala melas)
Histological and immunohistochemical characteristics of the neoplasia. Images A to D represent examples of the complex structure of the tumour: a bronchioloalveolar pattern (H&E, 4x); b adenocarcinomatous pattern (H&E, 4x). c Higher magnification of image A (H&E, 20x). d Higher magnification of image B (H&E, 20x). e About 90 % of neoplastic epithelial cells displayed mild, cytoplasmic and membranous labelling for cytokeratin 5 (CK 5 + 8 IHC, 40x)