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Difference between revisions of "Pancreas"
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→Serous cystic tumours: rework
(→Serous cystic tumours: +image) |
(→Serous cystic tumours: rework) |
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=Cystic lesions= | =Cystic lesions= | ||
==Serous | ==Serous tumours - overview== | ||
===General=== | ===General=== | ||
*Cell of origin: intralobular duct cells (ductular cells). | *Cell of origin: intralobular duct cells (ductular cells). | ||
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====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. | ||
*Serous oligocystic adenoma. | *Serous oligocystic adenoma. | ||
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*If one mucin +ve cell, tumour = a mucinous tumour. | *If one mucin +ve cell, tumour = a mucinous tumour. | ||
==== | ==Serous cystadenoma of the pancreas== | ||
*1-2% of all exocrine | *[[AKA]] ''serous microcystic adenoma''.<ref name=Ref_Sternberg4_1630>{{Ref Sternberg4|1630}}</ref> | ||
===General=== | |||
*1-2% of all exocrine pancreatic tumours. | |||
*Female > male. | *Female > male. | ||
*Mean age 66 years. | *Mean age 66 years. | ||
*Truly benign with no malignant potenial. | *Truly benign with no malignant potenial. | ||
*May be part of [[von Hippel-Lindau syndrome]]. | *May be part of [[von Hippel-Lindau syndrome]]. | ||
Management: | |||
*Observe or resect. | |||
* | |||
===Gross=== | ===Gross=== | ||
Features: | |||
*Classically has a characteristic central scar.<ref name=pmid15888617>{{cite journal |author=Kim YH, Saini S, Sahani D, Hahn PF, Mueller PR, Auh YH |title=Imaging diagnosis of cystic pancreatic lesions: pseudocyst versus nonpseudocyst |journal=Radiographics |volume=25 |issue=3 |pages=671–85 |year=2005 |pmid=15888617 |doi=10.1148/rg.253045104 |url=http://radiographics.rsna.org/content/25/3/671.abstract}}</ref> | |||
*Bosulated surface. | *Bosulated surface. | ||
*Lobulated. | |||
*No (macroscopic) cysts apparent on gross. | *No (macroscopic) cysts apparent on gross. | ||
*Location: 50-70% occur in the body and tail. | |||
*Size: average size 11 cm. | |||
Radiologic appearance: | |||
*Honey comb-like appearance. | |||
*Well demarcated border - may be described as a "coin lesion". | |||
Image: | Image: | ||
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DDx: | DDx: | ||
*[[Renal cell carcinoma]]. | *[[Renal cell carcinoma]]. | ||
*[[ | *[[Lymphangioma]]. | ||
*[[Hemangioma]]. | *[[Hemangioma]]. | ||
*Oligocystic mucinous cystic tumors and pseudocysts. | *Oligocystic mucinous cystic tumors and pseudocysts. | ||