Cite this page: Gulwani H. Colloid carcinoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/ampullacolloid.html. Accessed April 23rd, 2019.
Definition / general
- Usually associated with intraductal papillary mucinous neoplasm or tubular/tubulovillous adenoma (Am J Surg Pathol 2002;26:56)
- Similar prognosis to other periampullary adenocarcinomas (in above study)
Microscopic (histologic) description
- Predominantly mucin lakes with floating malignant epithelial cells and minimal conventional adenocarcinoma
- May contain signet ring cells