Liver - Part 6 Flashcards
Hemangioendothelioma
Infantile hemangioma
What is the most common symptomatic vascular tumour in infancy?
Hemangioendothelioma
What are the clinical findings of hemangioendothelioma?
Abdominal mass
What is the US appearance of hemangioendothelioma? (4)
- Multiple hypoechoic lesions
- Size varies from 1cm-3cm
- Multiple peripheral vessels
- Large draining veins with dilated proximal abdominal aorta with AV shunting
Hemochromatosis
Rare disease characterized by excess iron deposits throughout the body
What may hemochromatosis cause?
Cirrhosis
What are the clinical findings of hemochromatosis? (4)
- Fatigue
- Shortness of breath
- Heart palpitations
- Chronic abdominal
pain
What is the US appearance of hemochromatosis? (2)
- Hepatomegaly
- Uniform increase in
parenchymal echogenicity
Mesenchymal hamartoma
Rare lesion occurring in children less than 2 years of age
What are the clinical findings of mesenchymal hamartoma? (2)
- Developmental unencapsulated cystic tumour
2. Disordered arrangement of bile ducts, hepatic parenchyma, and primitive mesoderm
What is the US appearance for mesenchymal hamartoma? (5)
- Diffuse abdominal distention
- Palpable abdominal mass
- Well-defined large complex mass
- Predominently anechoic
- Lace-like configuration
What are the causes of hemangiosarcoma?
Exposure to arsenic, polyvinyl, and thorotrast
What are the clinical findings of hemangiosarcoma? (3)
- Abdominal pain
- Loss of appetite
- Lethargy
What is the US appearance of hemangiosarcoma? (5)
- Heterogeneous
- Hyper echoic mass
- Cystic mass with internal septation
- Metastatic lesions to the portal vein, spleen, lungs, lymph nodes, thyroid, and peritoneal cavity
- Internal blood flow
What kind of tumour is hepatoblastoma?
Germ cell tumour
