Langzeituntersuchungen von 52 behandelten Patienten mit Gastrointestinalen Stromatumoren (GIST)

Tumor location of GIST was gastric in 32, small bowel in 14, rectum in 3 and extraintestinal in 3 patients. Median tumor size was 46 mm. Median mitotic index was 4 per 50 hpf. Resection was achieved R0 in 46 patients, R1 in 4 patients and R2 in 2 patients. Mean overall survival was 58.9 months (range, 46– 73 months). Mean recurrence free survival was 45.6 months (range, 36–57 months). Mean overall survival was 58.9 months (range, 46–73 months). Risk factors for recurrence were tumor location and high mitotic index Ki-67