Multiple primary cancers with gastrointestinal malignant tumors as the first manifestation: Three case reports and review of literature

Table 3 Clinical information

Case	Age	Sex	PH	TFH	Multiple primary cancer				SC or MC	Treatment	Outcome
					Symptoms	Location	Pathology	Staging
1	72	Man	Smoking > 40 years; No alcohol	+	Abdominal pain; Bloating; Nausea	Colon; Hypopharynx	As-ca; Sc-ca	ⅡB; 0	MC	Ope	Died
2	69	Man	Smoking > 20 years; Alcohol > 20years; Long-term oral aspirin	-	Abdominal pain; Weight loss; Back pain; Dizziness; Anaemia; Fatigue	Gastric body; Esophagus; Colon	As-ca; Sc-ca; As-ca	ⅠA; ⅠB; ⅡB	SC	Ope (da Vinci); Chemo (XELOX)	Alive
3	52	Woman	No smoking; No alcohol; diabetes; BMI 32.2	-	Abdominal pain; Bloating; Nausea; Weight loss; Hoarseness; Dysphagia; Anorexia	Gastric body; Esophagus	As-ca; Sc-ca	IIIB; ⅠB	SC	Ope (da Vinci); Chemo (DOX)	Alive

BMI: Body mass index.