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. 2006 Mar 21;12(11):1699–1705. doi: 10.3748/wjg.v12.i11.1699

Table 2.

Nature of primary tumor

Parameter Mean Range
Primary tumor n %
Colorectal tumor 44 35.2
Breast tumor 27 21.6
Pancreas tumor 17 13.6
Bronchial tumor 7 5.6
Gastric tumor 6 4.8
Renal tumor 3 2.4
Endocrine gastrointestinal tumor 2 1.6
Melanoma 2 1.6
Others 23 18.4
In 6 patients, several primary tumors were present