Department of Retroperitoneal Tumor Surgery, Peking University International Hospital, Beijing, China ...

Therefore, the diagnosis of leiomyosarcoma was confirmed. The most important differential diagnosis of leiomyosarcoma of IVC are retroperitoneal soft-tissue tumours such as liposarcomas and ...

Major vascular involvement is not rare in patients with primary retroperitoneal STSs. We present a 54-year-old woman with a retroperitoneal STS encasing the infrarenal abdominal aorta. The patient ...

Retroperitoneal sarcomas (RPS) account for 0.15% of all malignancies and approximately 15% of soft tissue sarcoma. Before progressing to a large volume and invading adjacent organs, RPS is difficult ...

Ultrasound-guided biopsy revealed an undifferentiated small round-cell morphology. Immunohistochemistry staining suggested a member of the Ewing's sarcoma/embryonal tumor (ES/ET) family (Figure 2).

Intraoperative radiotherapy might not serve as a standard therapy for retroperitoneal liposarcoma: insights from a population-based propensity score-matched study ...

If these diagnoses are excluded by immunohistochemistry, then patients presenting with primary non-visceral retroperitoneal masses that are felt to be "consistent with sarcoma" shall be considered ...