microscopically , the epithelial , component of adenolymphomas consisted of tall columnar luminal cells and irregularly shaped basal cells . alpha 1-act was detected in the luminal layer of epithelium in 27 ( 90 % ) of 30 adenolymphomas , while the basal layer was positive in 4 cases ( 13 % ) .
C0596155
basal cells
C0014609
epithelium