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Difference between revisions of "Ampulla of Vater"
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→Microscopic: subclassification
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===Microscopic=== | ===Microscopic=== | ||
Features: | Features: | ||
*Dependent on subtype:<ref name= | *Dependent on subtype:<ref name=pmid23026934/><ref name=pmid15549428/> | ||
*#Intestinal ampullary carcinoma. | *#Intestinal ampullary carcinoma. | ||
*#Pancreaticobiliary ampullary carcinoma. | *#Pancreaticobiliary ampullary carcinoma. | ||
| Line 85: | Line 85: | ||
*Ectopic pancreas.<ref name=pmid18304504>{{Cite journal | last1 = Hsu | first1 = SD. | last2 = Chan | first2 = DC. | last3 = Hsieh | first3 = HF. | last4 = Chen | first4 = TW. | last5 = Yu | first5 = JC. | last6 = Chou | first6 = SJ. | title = Ectopic pancreas presenting as ampulla of Vater tumor. | journal = Am J Surg | volume = 195 | issue = 4 | pages = 498-500 | month = Apr | year = 2008 | doi = 10.1016/j.amjsurg.2007.01.043 | PMID = 18304504 }} | *Ectopic pancreas.<ref name=pmid18304504>{{Cite journal | last1 = Hsu | first1 = SD. | last2 = Chan | first2 = DC. | last3 = Hsieh | first3 = HF. | last4 = Chen | first4 = TW. | last5 = Yu | first5 = JC. | last6 = Chou | first6 = SJ. | title = Ectopic pancreas presenting as ampulla of Vater tumor. | journal = Am J Surg | volume = 195 | issue = 4 | pages = 498-500 | month = Apr | year = 2008 | doi = 10.1016/j.amjsurg.2007.01.043 | PMID = 18304504 }} | ||
</ref> | </ref> | ||
====Intestinal ampullary carcinoma==== | |||
Features:<ref name=pmid23026934/> | |||
*Pseudostratified columnar epithelium with hyperchromatic, ellipsoid nuclei. | |||
====Pancreatobiliary ampullary carcinoma==== | |||
Features:<ref name=pmid23026934/> | |||
*Tubular arrangements consisting of cuboidal cells in one or two layers. | |||
====Other==== | |||
Features - any of the following characteristics:<ref name=pmid23026934/> | |||
*Non-tubular morphology. | |||
*Micropapillary architecture. | |||
*Signet ring cells. | |||
*Mucin: | |||
*#Colloid. | |||
*#Mixed-mucinous. | |||
*#Mucinous-signet-ring. | |||
===IHC=== | ===IHC=== | ||