Fact-sheet: Splenic hemangioma
Updated on 08/26/2020 at 2:42 PM
View all RADEOS cases associated with this fact-sheet
Definition
Most common benign solid lesion of the spleen.
Non-encapsulated vascular tumor.
Several histologic subtypes (mainly cavernous and capillary)
Clinical features
Asymptomatic / incidental finding.
Laboratory findings
Not disturbed.
Radiography
Not contributory.
Ultrasound
- Cavernous hemangioma:
hypoechoic, with cystic areas or entirely cystic - Capillary hemangioma:
isoechoic, or round or irregular hyperechoic with well-defined margins. - Color Doppler:
peripheral or central vessels.
CT
Similar to Hepatic hemangioma:
- Mildly hypodense on unenhanced images.
- Progressive, patchy, peripheral, nodular, discontinuous enhancement starting on the arterial phase, without washout, complete on delayed acquisitions.
- Central calcifications
MRI
- T1: variable signal depending on content
- T2: marked hyperintensity
- Post-contrast: non-characteristic kinetics.
Inconsistent centripetal enhancement.
Homogeneous enhancement, no patchy enhancement.
Management
No treatment.
No follow-up.
Differential diagnosis
Special cases: Klippel-Trenaunay-Weber syndrome and Kasabach-Merritt syndrome.
Benign: hamartoma / lymphangioma / SANT.
Intermediate: littoral cell angioma, Hemangiopericytoma.
Malignant: Angiosarcoma / Spleen metastasis.
