Leiomyosarcoma of the Inferior Vena Cava Mimicking Right Adrenal Tumor

ABSTRACT

The most frequent tumor arising from retroperitoneum is sarcoma. Most sarcomas of retroperitoneal origin have no symptoms and comprise 15% of all sarcomas. However, they can grow so great as to cause pain, which implies the possibility of invasion to adjacent organs. Moreover, if its location is between right adrenal gland and inferior vena cava (IVC) ambiguity of its origin can arise. Leiomyosarcoma of IVC is so rare that it can be seen to mimic right adrenal tumor. This 56-year-old female patient with back pain since approximately 4 months prior was transferred to our hospital via local clinic. We performed radical resection of tumor including segmental resection of IVC. Final diagnosis was leiomyosarcoma of IVC. We report this case with a review of literature.