Sonographic patterns of littoral cell angioma: Case report and review of the literature

Aim: Littoral cell angioma is a rare benign tumour of vascular proliferatio n unique to the spleen. Definitive sonographic patterns are yet unknown and are described in this paper. Method: We report about 2 patients with histo logically confirmed Littoral cell angioma. The sonographic features of thes e and 5 additional cases in the literature are presented. Results: Littoral cell angioma is characterized by splenomegaly (6 out of 7 cases) with smal l nodular hyperechoic focal lesions (6 out of 7 cases). A solitary hyperech oic tumour (1 out of 7 cases) is a rare event. Conclusion: Littoral cell an gioma is a recently discovered tumour and should be included in the differe ntial diagnosis of a hyperechoic splenic tumour.