Table 4.
Qian classification
| Number of cysts | Symptomatic hepatomegaly | |
| Grade 0 | 0 | No |
| Grade 1 | 1-10 | No |
| Grade 2 | 11-20 | No |
| Grade 3 | > 20 | No |
| Grade 4 | > 20 | Yes |
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