Figure 4From: Hepatic pseudocystic metastasis of well-differentiated ileal neuroendocrine tumor: a case report with review of the literatureBlood-filled core and delicate septa. (A) Microscopic view of the primary ileal tumor, composed of rounded nests of closely packed, monomorphous cells (EE, 10×). (B) The same architectural pattern of the hepatic metastasis, with the central, blood-filled core of blood and delicate septa of tumoral cells (EE; 10x). (C-D) Granular, cytoplasmic immunostaining for serotonin in both primary and metastatic tumors (20×).Back to article page