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Difference between revisions of "Pancreas"
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→Serous cystic tumours: +image
(→Serous cystic tumours: +image) |
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*Glycogen rich - but do not produce mucin. | *Glycogen rich - but do not produce mucin. | ||
===Subclassication=== | ====Subclassication==== | ||
*Serous microcystic adenoma ([[AKA]] serous cystadenoma<ref name=Ref_Sternberg4_1630>{{Ref Sternberg4|1630}}</ref>). | *Serous microcystic adenoma ([[AKA]] serous cystadenoma<ref name=Ref_Sternberg4_1630>{{Ref Sternberg4|1630}}</ref>). | ||
** Many small cysts. | ** Many small cysts. | ||
| Line 406: | Line 406: | ||
*If one mucin +ve cell, tumour = a mucinous tumour. | *If one mucin +ve cell, tumour = a mucinous tumour. | ||
===Characteristics of serous microcystic adenoma=== | =====Characteristics of serous microcystic adenoma===== | ||
*1-2% of all exocrine pancratic tumours. | *1-2% of all exocrine pancratic tumours. | ||
*Female > male. | *Female > male. | ||
| Line 425: | Line 425: | ||
**Lobulated. | **Lobulated. | ||
*No (macroscopic) cysts apparent on gross. | *No (macroscopic) cysts apparent on gross. | ||
Image: | |||
*[http://www.joplink.net/prev/200905/25_fig06.jpg Serous microcystic adenoma (joplink.net)].<ref name=pmid19454830>{{Cite journal | last1 = Vernadakis | first1 = S. | last2 = Kaiser | first2 = GM. | last3 = Christodoulou | first3 = E. | last4 = Mathe | first4 = Z. | last5 = Troullinakis | first5 = M. | last6 = Bankfalvi | first6 = A. | last7 = Paul | first7 = A. | title = Enormous serous microcystic adenoma of the pancreas. | journal = JOP | volume = 10 | issue = 3 | pages = 332-4 | month = | year = 2009 | doi = | PMID = 19454830 |URL = http://www.joplink.net/prev/200905/25.html }}</ref> | |||
===Microscopic=== | ===Microscopic=== | ||
Features: | Features: | ||
* | *Cystic spaces lined by cuboidal cells. | ||
**Glycogen rich. | **Glycogen rich. | ||
**Cilia. (???) | **Cilia. (???) | ||
DDx: | |||
*[ | *[[Renal cell carcinoma]]. | ||
*[[Lympangioma]]. | |||
*[[Hemangioma]]. | |||
*Lympangioma. | |||
* | |||
*Oligocystic mucinous cystic tumors and pseudocysts. | *Oligocystic mucinous cystic tumors and pseudocysts. | ||
**Have mucin; PAS-D could be used to demonstrate its presence. | **Have mucin; PAS-D could be used to demonstrate its presence. | ||
| Line 445: | Line 444: | ||
Notes: | Notes: | ||
*Serous adenoma my coexist with aggressive tumours. | *Serous adenoma my coexist with aggressive tumours. | ||
Images: | |||
*[http://commons.wikimedia.org/wiki/File:Pancreatic_serous_cystadenoma_-_intermed_mag.jpg PSC - intermed. mag. (WC)]. | |||
*[http://commons.wikimedia.org/wiki/File:Pancreatic_serous_cystadenoma_-_very_high_mag.jpg PSC - very high mag. (WC)]. | |||
===Stains=== | |||
*PAS +ve. | |||
*PASD -ve. | |||
==Mucinous cystic neoplasms of the pancreas== | ==Mucinous cystic neoplasms of the pancreas== | ||