Fig. 2From: Anlotinib dramatically improved pulmonary hypertension and hypoxia caused by Pulmonary Tumor Thrombotic Microangiopathy (PTTM) associated with gastric carcinoma: a case reportHistopathological analysis and Immunohistochemistry. A Hematoxylin–eosin staining analyzed the histopathological changes of biopsied gastric mucosa. Adenocarcinoma (white arrows), signet ring cell carcinoma (black arrows) (400 ×). B VEGF expression was analyzed by immunohistochemistry (Streptavidin-Perosidase assay, Anti-VEGF antibody, GeneTech, VG1; 400 ×). Most signet ring cell carcinoma cells were negative for VEGF, while some adenocarcinoma cells were positive (arrows)Back to article page