Hemangiopericytoma of the spleen
Hemangiopericytomas of the spleen are very rare vascular neoplasma with only a few case reports available at the time of writing.
Splenic hemangiopericytomas are typically asymptomatic or can result in splenomegaly.
These are soft tissue vascular neoplasms arising from capillary pericytes 1. It is often characterized as having variable biologic behavior, but it is regarded as a tumor that may have very high malignant potential 3.
Since the tumors are very rare, with only occasional case reports describing the imaging findings.
- a large splenic mass with polylobular contours
- smaller disseminated lesions throughout the spleen 3
Speckled calcification may be seen on CT scans, and contrast-enhanced studies may show discrete hyperattenuation of solid portions and septation.
History and etymology
It was first reported by Guadalajara Jurado et al. in 1989 4.