Infantile Haemangioendothelioma

1. AFP Normal

2. Special Features

2.1. on Angio

2.1.1. hepatic artery seen with early filling of dilated veins

2.1.2. pooling of contrast in vascular spaces

2.2. increased arterial supply to the tumour

2.2.1. reduced aortic calibre distal to celiac

2.3. spontaneous regression after 1 year

2.3.1. but patients can die from heart failure

3. Demographics

3.1. < 1 years

3.2. F > M

4. CT

4.1. unenhanced

4.1.1. well defined mass

4.1.2. hypoattenuating

4.1.2.1. heterogenous high attenuation

4.1.2.1.1. calcification

4.1.2.1.2. haemorrhage

4.2. enhanced

4.2.1. peripheral, nodular filling

4.2.2. small lesions may enhance uniformly

4.2.3. larger lesions may have persistent low central enhancement

4.2.3.1. necrosis

4.2.3.2. fibrosis

5. US

5.1. complex, mostly solid lesion

5.2. heterogenous echotexture

5.3. doppler

5.3.1. significant arteriovenous shunting may be seen

5.3.1.1. dilated hepatic vasculature

6. MR

6.1. T1

6.1.1. low intensity

6.2. T2

6.2.1. high intensity

6.2.2. flow voids from AV shunting

6.3. enhancement

6.3.1. centripetal