Clinical analysis of multiple primary malignancies in the digestive system: A hospital-based study

Table 4 Distribution of MPMs in large intestine: 42 cases¹

Subgroup	Large intestine	n	Non-GI cancers	n
(1)	Colon	5	Cervix	1
			Larynx	1
			Lung	1
			Uterus	1
			Left breast	1
	Rectum	5	Ovary	1
			Cervix	2
			Right breast	1
			Bladder	1
(2)	Colon	7	Cervix	2
			Ovary	1
			Thyroid	1
			Right thigh	1
			Bladder	1
			Nose	1
	Rectum	12	Cervix	9
			Right breast	1
			Thyroid	1
			Brain	1
(3)	Colon	7	Cervix	3
			Ovary	4
	Rectum	6	Cervix	3
			Left breast	1
			Lung	2

¹Excluding double primary GI tract cancers (22 cases). (1): Primary GI tract cancer, secondary cancers of other sites. (2): Primary cancers of other sites, secondary GI tract cancers. (3): Synchronous.