[Retroperitoneal sarcoma: therapeutic and prognostic characteristics, report of 6 cases].

Retroperitoneal sarcoma is a rare solid tumor that accounts for less than 15% of soft tissue sarcoma. The authors conducted a retrospective study about 6 cases to evaluate the natural history of the tumors and the causes of treatment failure in an attempt to develop a rational approach to the management of the neoplasm. The histological grade and complete resection are the most important prognosis factors.

[Pancreatic tuberculosis. Report of two cases].

We report two cases of pancreatic tuberculosis. The first patient had abdominal pain, jaundice and weight loss. Ultrasonography and CT scan suggested a pancreatic tumor.

[Psoas tumors].

The authors report a case of benign tumor of the psoas muscle occurring in a 36-year-old man. The diagnosis was based on computed tomography and the patient underwent tumorectomy by an extrapoeritoneal approach. The authors emphasize the ratity f psoas tumors that are usually malignant and the advantage of computed tomography and percutaneous biopsy.