Two cases of retroperitoneal leiomyosarcoma are reported. Patient 1, a 68-year-old man, was admitted to the hospital because of a left upper abdominal mass.
Abdominal echo and CT scan showed giant masshaving necrotic change. The tumor 16×15×19cm in size and developing in the retroperitoneum was removed with the body and tail of pancreas, and spleen tran-speritoneally.
Patient 2, a 65-year-old man, was admitted to the hospital because of tarry stool and fatigability.
Abdominal echo and CT scan showed a well demarcated large abdominal mass accompanying with colonic gas. Intraoperative findings showed that the tumor invaded the second portion of duodenum and pancreas head. The tumor 13×7×6cm in size, was removed by partial resection of the duodenum and pancreas tran-speritoneally.
The pathological diagnoses of case 1 and 2 were retroperitoneal leiomyosarcoma.
Postoperative courses of both patients were uneventful.
Histological grading is the Determinant prognostic factor for retroperitoneal sarcomas.
We would emphasize the importance of early detection and if necessary, radical resection as much as possible which is the most effective and available treatment.