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Table 2 Reported primary tumor location by age group and gender

From: Survival of gastrointestinal stromal tumor patients in the imatinib era: life raft group observational registry

  < 18 18-35 > 35 Total
Primary Tumor Location F M F M F M  
Stomach 21 5 47 18 198 210 499
Small intestine   2 25 12 148 204 391
Unknown    4 6 54 50 114
Colon     1 16 16 33
Rectum/anus     2 13 17 32
Large & small intestine     2 5 9 16
Stomach & small intestine      6 5 11
Esophagus & stomach    2   3 6 11
Omentum      4 7 11
Esophagus    1   3 6 10
Peritoneum    1   5 4 10
Other     1 5 3 9
Mesentery    1   2 5 8
Pelvis    1   2 5 8
Liver     1 3 2 6
Retroperitoneal     1   4 5
Pancreas      2 2 4
Spleen      1 2 3
Chest       1 1
Adrenal gland      1   1
Bladder      1   1
Total 21 7 82 44 472 558 1184
  1. Primary tumor sites were provided as free text as listed below in decreasing order. Care must be taken in the interpretation of these data as reporting of primary tumor location as a single or unique site can be challenging (see Limitations). Patients of unknown age at diagnosis were not included (n = 31)