Table 4.

Characteristics of gastrointestinal stromal tumors and associated neoplasias

Parameter	Quantification		No. of patients available for calculation
Designtion of associated NPL, n (%)	Benigne 253 (11)		2248
	Malignant 1995 (89)
Chronological presentation, n (%)	Synchoronous 366 (50)		732
	GIST first 179 (24)
	Ass. NPL first 187 (26)
Histological subtypes of GIST, n (%)	Spindle	Total population 409 (78)	525; 185
		GIST + ass. NPL 149 (80)
	Epitheloid	Total population 43 (8)
		GIST + ass. NPL 11 (6)
	Mixed	Total population 73 (14)
		GIST + ass. NPL 25 (14)

GIST: Gastrointestinal stromal tumors.