This is a protocol for a Cochrane Review (Intervention). The objectives are as follows:

To assess the benefits and harmful effects of intracystic bleomycin in children aged 0 to 18 years with cystic CP.

Specific objectives are to assess:

(1) comparison of intracystic bleomycin to placebo (no treatment);
(2) comparison of intracystic bleomycin to surgical treatment (with or without adjuvant radiotherapy);
(3) comparison of intracystic bleomycin to some other intracystic chemotherapies.