Pathologic types and histological characteristics of retroperitoneal soft tissue tumors        WANG Jian, YU Lin. Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
Corresponding author: WANG Jian, E-mail: softtissuetumor@163.com
Abstract    The common retroperitoneal tumors include liposarcoma, leiomyosarcoma, undifferentiated pleomorphic sarcoma (formerly called as malignant fibrous histiocytoma), paraganglioma (pheochromocytoma) and malignant mesothelioma. Some relatively rare tumors can also occur in the retroperitoneum. Familiarity with clinical manifestation, radiological feature and morphology of the tumors is helpful for pathologic diagnosis and differential diagnosis, and can provide the valuable reference of making correct therapeutic decisions.