Table 4.

Changes in metastatic staging and oncologic management according to [^99mTc]Tc-HFAPi

No	Sex	Age	State	Primary tumour	Metastasis stage and site from ceCT	Metastasis stage and site from [99mTc]Tc-HFAPi	Ways to confirm	Changing in stage	Clinical decision
1	F	69	Treatment-naive	Adenocarcinoma of rectum	Mx	M1 with occipital bone	CT with bony change	Staging up	Palliative operation
2	F	58	Treatment-naive	Adenocarcinoma of the cecum	M1 with liver	M0 without liver	DWI: hepatic cyst	Staging down	Tend to operation
3	M	81	Treatment-naive	Adenocarcinoma of rectum	M1 with liver	M0 without liver	DWI: Hepatic spongy hemangioma	Staging down	Tend to operation
4	M	55	Treatment-naive	Gastric adenocarcinoma	M1 with liver	M0 without liver	DWI: no obvious abnormality	Staging down	Tend to operation
5	F	22	Treatment-naive	Gastric adenocarcinoma	M0	M1 with skull, posterior bulbar tissue, peritoneum	Pathology of peritoneum, CT with bony change of the skull	Staging up	Palliative surgery and intraperitoneal chemotherapy
6	M	58	Treatment-naive	Gastric adenocarcinoma	Mx	M0 without liver	Follow up	Staging down	Tend to operation
7	F	51	Neoadjuvant chemotherapy	Adenocarcinoma of rectum	Mx	M0 without spleen	DWI: Splenic hemangioma	Staging down	Tend to operation