Biliary cystadenoma and cystadenocarcinoma echocardiography or ultrasound: Difference between revisions
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{{Biliary cystadenoma and cystadenocarcinoma}} | {{Biliary cystadenoma and cystadenocarcinoma}} | ||
{{CMG}};{{AE}} {{PSK}} | |||
{{CMG}} | |||
==Overview== | ==Overview== | ||
On ultrasound, biliary cystadenoma is characterized by fluid filled multiloculated cyst with enhanced transmission. The cyst fluid may contain low level echoes from blood products, mucin, or proteinaceous fluid. Contrast-enhanced ultrasound demonstrates minimal enhancement since the tumors are largely avascular. | |||
==Ultrasound== | ==Ultrasound== | ||
There are no specific imaging features that permit reliable differentiation of biliary cystadenoma from cystadenocarcinoma: | |||
There are no specific imaging features that permit reliable differentiation of biliary cystadenoma from cystadenocarcinoma. | *On Ultrasound, biliary cystadenomas are typically multiloculated and demonstrate enhanced transmission.<ref name="MunirMeschino2014">{{cite journal|last1=Munir|first1=Bilal|last2=Meschino|first2=Michael|last3=Mercado|first3=Ashley|last4=Hernandez-Alejandro|first4=Roberto|title=Biliary Cystadenoma: An Unusual Cause of Acute Pancreatitis and Indication for Mesohepatectomy|journal=Case Reports in Gastrointestinal Medicine|volume=2014|year=2014|pages=1–3|issn=2090-6528|doi=10.1155/2014/643032}}</ref> | ||
*Mural nodules and papillary projections may project into the cyst lumen. | |||
* | *The cyst is well-demarcated and thick-walled, globular or ovoid with a noncalcified wall. | ||
* | *If septal or wall calcification is present then acoustic shadowing may be observed.<ref name=radio1>Biliary cystadenoma.Dr Yuranga Weerakkody and Radswiki et al.Radiopaedia.org 2015. http://radiopaedia.org/articles/biliary-cystadenoma</ref> | ||
*The cyst fluid may contain low-level echoes from blood products, mucin, or proteinaceous fluid. Serous and bilious cyst fluid is generally anechoic. | *The cyst fluid may contain low-level echoes from blood products, mucin, or proteinaceous fluid. Serous and bilious cyst fluid is generally anechoic. | ||
* | *Doppler study may show the vascular flow within the lesion. Dilation of the biliary system can also be seen.<ref name="Ahanatha PillaiVelayutham2012">{{cite journal|last1=Ahanatha Pillai|first1=Sastha|last2=Velayutham|first2=Vimalraj|last3=Perumal|first3=Senthilkumar|last4=Ulagendra Perumal|first4=Srinivasan|last5=Lakshmanan|first5=Anand|last6=Ramaswami|first6=Sukumar|last7=Ramasamy|first7=Ravi|last8=Sathyanesan|first8=Jeswanth|last9=Palaniappan|first9=Ravichandran|last10=Rajagopal|first10=Surendran|title=Biliary Cystadenomas: A Case for Complete Resection|journal=HPB Surgery|volume=2012|year=2012|pages=1–6|issn=0894-8569|doi=10.1155/2012/501705}}</ref> | ||
*Contrast-enhanced ultrasound demonstrates minimal enhancement since the tumors are largely avascular. Abnormally increased vascularity may be present peripherally or in the septa.<ref name=radio1>Biliary cystadenoma.Dr Yuranga Weerakkody and Radswiki et al.Radiopaedia.org 2015. http://radiopaedia.org/articles/biliary-cystadenoma</ref> | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
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Latest revision as of 02:29, 6 November 2017
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Biliary cystadenoma and cystadenocarcinoma Microchapters |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Suveenkrishna Pothuru, M.B,B.S. [2]
Overview
On ultrasound, biliary cystadenoma is characterized by fluid filled multiloculated cyst with enhanced transmission. The cyst fluid may contain low level echoes from blood products, mucin, or proteinaceous fluid. Contrast-enhanced ultrasound demonstrates minimal enhancement since the tumors are largely avascular.
Ultrasound
There are no specific imaging features that permit reliable differentiation of biliary cystadenoma from cystadenocarcinoma:
- On Ultrasound, biliary cystadenomas are typically multiloculated and demonstrate enhanced transmission.[1]
- Mural nodules and papillary projections may project into the cyst lumen.
- The cyst is well-demarcated and thick-walled, globular or ovoid with a noncalcified wall.
- If septal or wall calcification is present then acoustic shadowing may be observed.[2]
- The cyst fluid may contain low-level echoes from blood products, mucin, or proteinaceous fluid. Serous and bilious cyst fluid is generally anechoic.
- Doppler study may show the vascular flow within the lesion. Dilation of the biliary system can also be seen.[3]
- Contrast-enhanced ultrasound demonstrates minimal enhancement since the tumors are largely avascular. Abnormally increased vascularity may be present peripherally or in the septa.[2]
References
- ↑ Munir, Bilal; Meschino, Michael; Mercado, Ashley; Hernandez-Alejandro, Roberto (2014). "Biliary Cystadenoma: An Unusual Cause of Acute Pancreatitis and Indication for Mesohepatectomy". Case Reports in Gastrointestinal Medicine. 2014: 1–3. doi:10.1155/2014/643032. ISSN 2090-6528.
- ↑ 2.0 2.1 Biliary cystadenoma.Dr Yuranga Weerakkody and Radswiki et al.Radiopaedia.org 2015. http://radiopaedia.org/articles/biliary-cystadenoma
- ↑ Ahanatha Pillai, Sastha; Velayutham, Vimalraj; Perumal, Senthilkumar; Ulagendra Perumal, Srinivasan; Lakshmanan, Anand; Ramaswami, Sukumar; Ramasamy, Ravi; Sathyanesan, Jeswanth; Palaniappan, Ravichandran; Rajagopal, Surendran (2012). "Biliary Cystadenomas: A Case for Complete Resection". HPB Surgery. 2012: 1–6. doi:10.1155/2012/501705. ISSN 0894-8569.