Multiple primary malignant tumors of upper gastrointestinal tract: A novel role of 18F-FDG PET/CT

Table 1 Characteristics of synchronous tumor in 12 patients

Sex/age (yr)	PET/CT findings				Endoscopic results
	T	T	N	M
F/61	EPC (lower)	Cardiac	Gastrohepatic		EPC (lower), cardiac
M/60	Hypopharynx	EPC (mid, lower)	Mediastinal		Hypopharynx
M/62	EPC (upper)	EPC (lower)	Supraclavicular		EPC (upper)
M/59	EPC (lower)	Cardiac	Mediastinal, gastrohepatic		EPC (lower), cardiac
M/61	Hypopharynx	EPC (mid)	Right cervical		Hypopharynx
M/62	EPC (mid)	Cardiac	Gastrohepatic		EPC (mid), cardiac
M/78	EPC (lower)	Pylorus	Mediastinal, gastrohepatic	Lung	EPC (lower), pylorus
M/57	EPC (mid, lower)	Cardiac	Mediastinal, gastrohepatic	Lung	EPC (mid, lower)
M/52	EPC (upper)	EPC (mid, lower)	Mediastinal, supraclavicular		EPC (upper, mid)
M/62	EPC (mid, lower)	Cardiac	Mediastinal, gastrohepatic	Liver	EPC (mid, lower)
M/53	Hypopharynx	EPC (mid, lower)	Cervical, mediastinal, retroperitoneal		Hypopharynx
M/60	EPC (upper)	EPC (mid)	Supraclavicular, mediastinal		EPC (upper, mid)

PET/CT: Positron emission tomography/computed tomography; EPC: Esophageal cancer.