Lesson 1.1 (Part 2) - Benign Tumours Flashcards
Benign hepatic neoplasms (7)
Granulomas Hamartomas Cysts Cavernous hemangioma FNH-focal nodular hyperplasia Adenomas Fatty tumours
What appears as calcification within the liver parenchyma?
Liver granulomas
T/F
liver granulomas are asymptomatic
true
What may liver granulomas be related to?
Scarring or infection
Hamartomas visualized as
small, focal, solid, hypoechoic
Which benign tumour is often confused with metastatic disease?
Hamartomas
Appearance of benign liver cysts
Fluid filled space, epithelial lining
What may happen to a benign liver cyst? What are the symptoms?
It may hemorrhage (escape of fluid) or become infected
Pain and fever
What may accompany a liver cyst?
Abscess
Septations
T/F
cysts with epithelial lining will recur if drained
True
What type of cysts are inherited?
Polycystic kidney disease
Are LFTs generally normal or abnormal with liver cysts?
Normal
If liver cyst with abnormal LFTs, what complications may arise?
Tumour
Infection
Biliary obstruction
T/F liver cysts are seen in more the half the population
True (60-75%)
What is the most common benign tumour?
Cavernous hemangioma
T/F males present with cavernous hemangioma more than females
false
Typical visualization of cavernous hemangioma
Small
Homogenous
Hyperechoic-tangle of tiny blood vessels
Well circumscribed
Vascularity of cavernous hemangioma
extremely low blood flow
What is the second most commonly seen benign liver tumour and is it more common in men or women
Focal nodular hyperplasia, more common in women
What benign tumour is vascular and has a spoke wheel pattern?
Focal nodular hyperplasia
What benign liver tumours are influenced by oral contraception (2)
Focal nodular hyperplasia
Hepatic adenoma
Which benign tumour is isoechoic
Focal nodular hyperplasia
What benign liver tumours are highly vascular (2)
Focal nodular hyperplasia
Hepatic adenoma
What benign liver tumours are more common in women?
Cavernous hemangioma (5:1)
Focal nodular hyperplasia
Hepatic adenoma
What benign liver tumour is symptomatic? Whats the symptom?
Hepatic adenoma
RUQ mass and pain (caused by lesion bleeding)
T/F
FNH is seen more commonly than hepatic adenoma
true
T/F Hepatic adenoma is at risk of malignant degeneration
True
Sonographic appearance of hepatic adenomas
Heterogenous
Multiple feeding hepatic arteries supply adenoma from periphery
Capsule
Which benign liver tumour exhibits a central hepatic artery
FNH
What is a classic sign of a fatty tumour
Broken diaphragm - sound travels through fat faster
Fatty tumours are hypoechoic or echogenic
Echogenic
What is a fatty tumour indistinguishable from on US
hemangioma
mets
focal fat
What is the rarest benign tumour
fatty tumour
