JDMS Article – SDMS CME Credit

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Article: Giant Fibrous Polyp of the Gallbladder Showing a Periphery-Dominant Contrast Enhancement: How to Differentiate It From Early Carcinoma

Authors: Taketoshi Fujimoto, MD, PhD, SJSUM and Yo Kato, MD, PhD

Category: Abdomen [AB]

Credit: 1.0 SDMS CME Credit

Objectives: After studying the article entitled “Giant Fibrous Polyp of the Gallbladder Showing a Periphery-Dominant Contrast Enhancement: How to Differentiate It From Early Carcinoma” you will be able to:

• Explain the sonographic features of giant fibrous polyp

• Discuss the sonographic vascular pattern of a giant fibrous polyp

• Describe the sonographic pattern of enhancement using CEUS of a giant fibrous polyp

1. What is the diameter of a soft-tissue mass with either a thin or thick stalk in the gallbladder for which a gallbladder carcinoma must be considered?

2. 1.0cm

3. 1.5cm

4. 2.0cm

What is the typical echogenicity of surface line of a gallbladder polyp?

Hyperechoic

Hypoechoic

Isoechoic

Surface line not present

What is the name of type of vascular flow pattern demonstrated on this Power Doppler image of the GB mass?

Chaotic

Dendrite

Hilar

Peripheral

With the use of Contrast-Enhanced Ultrasonography, what type of enhancement pattern would be suggestive of a giant fibrous polyp of the gallbladder in the post vascular phase?

Central

Homogeneous

No enhancement

Peripheral