Perioperative and Oncological Outcome of Laparoscopic Resection of Gastrointestinal Stromal Tumour (GIST) of the Stomach

Table 1

Classification of aggressive behaviour of GISTs proposed by Fletcher et al. [4].

	Tumour size (largest diameter)	Mitotic count per 50 high power fields
Very low risk	<2 cm	<5
Low risk	2–5 cm	<5
Intermediate risk	<5 cm	6–10
	5–10 cm	<5
High risk	>10 cm	any number
	any size	>10
	>5 cm	>5