Diffuse juvenile non-adenomatous polyposis: a rare cause of severe hypoalbuminaemia in childhood.

Hypoalbuminaemia is a well-recognized complication of juvenile polyposis, which is often not clinically apparent. We describe a child with diffuse colonic non-adenomatous polyposis who presented with generalized oedema and severe hypoalbuminaemia. The site of the protein loss was the polyps, and the problem resolved after colectomy. This is a case of unusually severe hypoalbuminaemia complicating juvenile polyposis.