the cyst wall was lined by ciliated , mucus producing columnar epithelium with areas of squamous metaplasia , the solid portion of the tumor was composed of cells with light and electron microscopic characteristics of squamous cells , mucus producing cells and anterior lobe cells of the pituitary : they displayed intercellular bridges , intracellular mucus droplets and on electron microscopy varying numbers of intracytoplasmic secretory granules in the 220-450 millimicron range .
C0007634
cells
C0886515
secretory granules