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 ...
a, The transitional epithelium containing basal progenitors (p63 + KRT7 + KRT8 –, arrowheads) is located between the stratified squamous and simple columnar cardia epithelium. n = 11. b, The ...