Breast terminal duct epithelium which assumes a columnar morphologic appearance has been recognized for decades, and has been referred to by a variety of names, including abnormal involution, cystic ...

Barrett's oesophagus, a precursor of oesophageal adenocarcinoma, is thought to be induced by acid reflux. One hallmark of this disease is a change from the stratified (layered) squamous oesophageal ...