Prevalence of Renal Angiomyolipomas and Spontaneous Bleeding Related to Angiomyolipomas in Tuberous Sclerosis Complex Patients in France and Norway-a Questionnaire Study

Fifty-four percent of the patients reported having AMLs and 7% (25/357) reported bleeding. Sixty-eight percent of first bleedings occurred between 20 and 30 years. Bleedings were managed conservatively in 38% of the patients and 62% needed active treatment.