Table II. Studies of liver resection with metastasis due to sarcoma and leiomyosarcoma.

Group	Centre	Number of cases	R0 resection	Supposedly GISTs	1-year survival	3-year survival	5-year survival	Recurrence
DeMatteo et al. 2001	New York, USA	331	56	34 (61%)	88%	50%	30%	47 (84%)
Lang et al. 1999	Hannover, Germany	34	15	4	Not recorded	Not recorded	20%	9 (60%)
Chen et al. 1998	Baltimore, USA	11	6	5	Not recorded	4	Not recorded	3

The likely amount of GISTs in the series is mentioned in the ‘supposedly GISTs’ section. Survival data are for patients with R0 resection. R0 is defined as resection with microscopically tumour-free margins. The ‘Recurrence’ section represents tumour recurrence despite R0 resection.