Staging System of Nagashima et al for Metastatic Colorectal Carcinoma to the Liver

Description

Nagashima et al proposed a staging system for patients with colorectal carcinoma metastatic to the liver. The authors are from Teikyo University and University of Tokyo in Japan.

Patient selection: metastatic colorectal carcinoma to the liver undergoing partial hepatectomy

Parameters:

(1) number of colorectal metastases

(2) diameter of metastasis in cm

(3) extrahepatic metastases

(4) resectability

Number of Metastases	Diameter in cm	H code
1	<= 5 cm	H1
1	> 5 cm	H2
>= 2	<= 5 cm	H2
>= 2	> 5 cm	H3

Extrahepatic Metastasis	Resectability	M code
absent	NA	M0
present	resectable	M1
present	unresectable	not given

H code	M code	Stage
H1	M0	I
H1	M1	II
H2	M0	II
H2	M1	III
H3	M0	III
H3	M1	IV
NA	unresectable	IVb

Stage	5-Year Survival
I	75%
II	43%
III	< 10%
IV	0% at 10 months

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Staging System of Nagashima et al for Metastatic Colorectal Carcinoma to the Liver

Description

Specialty