Fig. 1
From: Establishment and characterization of a metastasis model of human gastric cancer in nude mice
Metastatic tumor growth from the implanted gastric cancer tissue obtained surgically (X 400). a, b: Implanted cancer tissue grew to ~1 cubic centimeter and displayed an intact envelope and hard texture; c: Tumor metastasized into the mouse retroperitoneum; d, e: The implanted tissue and metastatic tumors consisted of poorly differentiated carcinoma cells and a few mesenchyma cells and blood vessels, with some resemblance to glandular cavity. The cancer cells showed dark-stained nuclei and scant cytoplasm and lacked the normal proportion between nucleus and cytoplasm; f: Implanted tumor showing tissue infiltration