Imaging of cystic fibrosis manifestations in the abdomen.

Cystic fibrosis is a common inherited autosomal recessive disease affecting 35,000 persons in the United States. It is caused by mutations of the cystic fibrosis transmembrane regulator (CFTR) gene, located on the long arm of chromosome 7.This protein carries chlorine in the membranes of epithelial cells of exocrine glands.

Secondary aortoenteric fistula-A fatal rare case involving the rectum.

Aortoenteric fistula (AEF) is a rare but potentially fatal condition causing massive gastrointestinal bleeding. It is defined as fistulous communication between the gastrointestinal tract and the aorta which is sub classified into primary and secondary. Primary AEF refers to communication between a native aorta and the gastrointestinal tract.