Table 1.

Characteristics of patients and tumors

n (%)
Median age (range), y58.5 (24 to 84)
Sex
    Female24 (46)
    Male8 (54)
Primary tumor30 (58)
Metastatic/recurrent tumor22 (42)
Site of primary tumor
    Stomach16 (53)
    Small bowel8 (27)
    Other6 (20)
Site of metastatic tumor
    Abdomen/peritoneum15 (68)
    Liver only6 (27)
    Liver/peritoneum1 (5)
Size of tumor, cm
    ≤1037 (71)
    >1015 (29)
Mutation
    Exon 11 KIT32 (62)
    Exon 9 KIT1 (2)
    Exon 17 KIT0 (0)
    PDGFRa (exons 18 and 12)0 (0)
    Wild type6 (12)
    N/A*13 (25)
  • *N/A, not applicable, not enough tissue for mutational analysis.