Chinese guidelines on the management of liver cirrhosis (abbreviated version)

Table 3 Laennec F1-F4 staging system, Laennec fibrosis staging scoring system in hepatic puncture tissue[20,21]

Stage	Name	Septum, thickness and amount	Criteria	Score
0	No clear fibrosis			0
1	Very mild fibrosis	+/-	No septum or very few thin septum, portal area enlarged or mild peri-sinusoid fibrosis	1
2	Mild fibrosis	+	Occasionally thin septum, portal area enlarged or mild peri-sinusoid fibrosis	2
3	Moderate fibrosis	++	A medium amount of thin septum, even incomplete cirrhosis	3
4A	Cirrhosis, mild, definite or possible	+++	Obvious septum, with circle outline or obvious nodules, thin septum mostly (one wide septum allowable)	4
4B	Moderate cirrhosis	++++	At least two wide septum, but no very wide septum; less than 1/2 of puncture tissues in length are composed of nodules	5
4C	Severe cirrhosis	+++++	At least one very wide septum, or more than 1/2 of puncture tissues in length are composed of nodules (micronodular cirrhosis)	6