An Imaging-Based Assessment of Inferior Vena Cava Leiomyosarcoma: A Case Series.

Primary inferior vena cava(IVC) leiomyosarcoma (LMS) is an extremely rare retroperitoneal mesenchymal tumour with < 500 cases reported in literature so far. Patients always present with nonspecific complaints, hence delaying the actual diagnosis, and they are associated with poor oncological outcomes. Differentiating primary leiomyosarcoma from other pathologies affecting IVC-like bland thrombus, retroperitoneal liposarcomas and other tumours infiltrating IVC secondarily may be difficult at times. We present here our experience with five cases of IVC leiomyosarcoma, who presented to us during a 6-year period.