Unit 6- Benign Hepatic Tumors

What are Hepatic Tumors?

•Neoplasm

•Any new growth of new tissue

•Either benign or malignant

What is a Benign Hepatic Tumor?

•Growth occurs locally but does not spread or invade surrounding structures

•May push on them or adhere to them

What is a Malignant Hepatic Tumor?

•Growth of mass is uncontrolled & will spread or metastasize to nearby or distant structures thru the bloodstream or lymph nodes

Cavernous Hemangioma is the:

•Most common benign liver lesion

What are the sonographic features of a Cavernous Hemangioma?

-Echogenic

-Homogenous

-Posterior enhancement

-Round or oval

-Well-defined borders

-Larger masses may show necrosis, degeneration, calcification

What does an atypical hemangioma look like sonographically?

-Hyperechoic periphery

-Hypoechoic central core

-“Reverse” target pattern

What is this Image showing?

Capillary Hemangioma

What is the second most common benign liver mass after a hemangioma?

Focal Nodular Hyperplasia (FNH)

What is a characteristic of a Focal Nodular Hyperplasia?

Scarring

After discontinuance of birth control in Focal Nodular Hyperplasia, what is the result?

Shrinkage

What are the sonographic findings of Focal Nodular Hyperplasia?

-Nonspecific

-Solitary, well-defined

-Non-encapsulated

-Multinodular

-Echogenic to isoechoic

-May have distinct central scar - (Hypoechoic)

What is an Adenoma?

-Uncommon Benign Mass

-Usually solitary

What can an Adenoma turn into?

May transform into HCC

If a rupture of an Adenoma occurs, what does it cause?

Hemoperitoneum

What are the sonographic features of an Adenoma?

-Rounded

-Hypoechoic (but varies)

-Well encapsulated

-Solitary but may be multiple

What is a Hepatic Cystadenoma?

Rare neoplasm which contains cystic structures within the lesion

Hepatic Cystadenomas occur more in?

Middle-aged women

A Hepatic Cystadenoma is:

•Premalignant potential

•Palpable abdominal mass

What does a Hepatic Cystadenoma look like on an ultrasound?

Multilocular lesions with mucinous fluid

The Benign Hepatic Masses include:

• Cavernous Hemangioma

• Focal Nodular Hyperplasia

• Adenoma

• Hepatic Cystadenoma