Primary sigmoid squamous cell carcinoma with liver metastasis: A case report

Table 1 The laboratory examination before surgery

Project name	Result	Unit	Reference range
White blood cell count	17.08	109/L	3.5-9.5
Red blood cell count	4.00	1012/L	3.8-5.1
Hemoglobin	118	g/L	115-150
Platelet count	390	109/L	125-350
Alanine aminotransferase	18.8	U/L	0.00-50.00
Aspartate aminotransferase	14.54	U/L	0.00-40.00
Total bilirubin	10.96	μmol/L	3.00-22.00
Urea nitrogen	2.81	mmol/L	2.50-6.10
Creatinine	53.6	μmol/L	46.00-92.00

Table 2 The genetic testing report of liver metastases

Gene name	Type of mutation	Exon number	Variant site	Mutation frequency
FBXW7	SNV	Exon11	p.S550R	2.21%
TP53	SNV	Exon7	p.S241Y	51.98%
KRAS	SNV	Exon2	p.G12D	55.95%
PTEN	SNV	Exon5	p.G127E	56.89%

SNV: Single nucleotide variation.