Metastatic pancreatic solitary fibrous tumor: A case report

Figure 3 Endoscopic ultrasonography findings. A: The mass showed hypoechogenicity inside, leading to an impression of cystic change; B: On doppler mode, blood vessels were observed inside the mass, suggesting it is less likely to be a cystic lesion; C: Endoscopic ultrasonography (EUS)-FNA specimen. H&E staining of the EUS-FNA specimen showed proliferation of spindle to ovoid cells. The specimen stained positive for smooth muscle actin, STAT6, and CD34, but negative for DOG-1, C-kit, S-100, and desmin.