Histologic appearance of microcystic serous adenoma

(A) Microcystic serous adenoma of the pancreas. Numerous small spaces are lined by cuboidal epithelium. Hematoxylin and eosin-stained section.
(B) Periodic Acid Schiff (PAS) staining of serous pancreatic cystadenoma. Note positive staining (arrows) identifying glycogen-rich cells lining cystic spaces.

Panel A: Courtesy of Daniel S Longnecker, MD.
Panel B: Courtesy of Michael Steer, MD.

Graphic 79089 Version 5.0