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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Biliary cystadenoma and cystadenocarcinoma echocardiography or ultrasound

Introduction

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:

  • 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

References

  1. ↑ 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. ↑ 2.0 2.1 Biliary cystadenoma.Dr Yuranga Weerakkody and Radswiki et al.Radiopaedia.org 2015. http://radiopaedia.org/articles/biliary-cystadenoma
  3. ↑ 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.


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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]