Resection of the Inferior Vena Cava for Retroperitoneal Sarcoma: Six Cases and a Review of Literature.

Resection of the inferior vena cava (IVC) for malignancy is a technically demanding procedure. We present a series of six cases of resection of the IVC for retroperitoneal sarcomas, four of which were primary caval tumors. We outline the technical difficulties faced in these complex procedures and discuss the oncological outcomes of these rare tumors. We performed a retrospective review of six patients operated for retroperitoneal masses involving the inferior vena cava between April 2015 and July 2016 at our tertiary care institute. Six patients underwent resection of the IVC, three of which required a multivisceral resection. An artificial prosthesis was used to reconstruct the IVC in three patients, whereas two patients underwent primary repair of the vein wall. One patient did not require any reconstruction. Margins were microscopically positive in two out of six patients. All patients received radiotherapy, either in the neo-adjuvant or adjuvant setting. Two patients developed local recurrences with a median follow-up of 24.5 months. Resection of the IVC for extirpation of retroperitoneal sarcomas is a technically complex and difficult procedure. The availability of a multidisciplinary team of surgeons and state-of-the-art intensive care support is essential for good outcomes.