Table 2 Comparison of angiomyolipoma characteristics in patients with sporadic and TSC-LAM

Total number of patients

107

15

Patients with angiomyolipoma ^# (%)

50

100

<0.0001

Mean age at renal presentation ^* (years)

39

38

NS

Mean tumour size at presentation ^* (mm)

29

61

0.006

Bilateral tumours ^# (% ^† )

40

84

0.004

Any renal tumour symptoms ^# (% ^† )

49

40

NS

Nephrectomy ^# (% ^† )

21

13

NS