Gastrointestinal stromal tumor of the stomach: How to manage?

Table 1 Reported risk of progressive disease (%)¹ of primary gastric gastrointestinal stromal tumor by mitotic index and size

	Tumor size
Mitotic index	0-2 cm	2-5 cm	5-10 cm	> 10 cm
< 5 per 50 hpf	0%	1.9%	3.6%	10%
> 5 per 50 hpf	0%	16%	55%	86%

Adapted from reference [6], 2005. Data are based on long-term follow-up of 1765 gastric gastrointestinal stromal tumors. ¹Defined as metastasis or tumor-related death.