RT Journal Article SR Electronic T1 Pancreatoblastoma: a histochemical and immunohistochemical analysis. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 952 OP 954 DO 10.1136/jcp.49.11.952 VO 49 IS 11 A1 C Hua A1 X K Shu A1 C Lei YR 1996 UL http://jcp.bmj.com/content/49/11/952.abstract AB A case of pancreatoblastoma arising in a five year old girl was analysed using histochemical and immunohistochemical methods. The tumour was composed of tubular gland-like structures, squamoid components and some small round cells surrounding tubular structures. The cytoplasm of the small round cells and a few of the squamoid cells was positive on staining with Grimelius argyrophil stain. Immunohistochemically, tumour tissue was positive for neurone specific enolase. The cytoplasm of some of the small round cells was positive for insulin, glucagon, somatostatin, pancreatin polypeptide, thyroid stimulating hormone, follicle stimulating hormone, and neurotensin. These results suggest that this tumour arose from primitive multipotential stem cells, showing exocrine and neuroendocrine differentiation.