BACKGROUND Bleomycin sclerotherapy became a popular nonsurgical option for the management of lymphangiomas. However, its efficacy has not been thoroughly evaluated. The purpose of this study was to assess the clinical outcomes and the effectiveness of bleomycin injection for the treatment of lymphangioma. METHODS This retrospective study was conducted in 4 centers and included 47 infants and children. All patients had bleomycin sclerotherapy between November 2005 and September 2020. Men presented 53.2% of the study sample (n = 25), and the most common site was the head and neck (n = 29, 61.7%). RESULTS Two injections were required in 11 patients (23.4%), and 7 patients (14.9%) required 3 or more injections. Excellent response was achieved in 63.8% (n = 30), 14 patients (29.8%) had a good response, and 4 had a poor response (8.5%). There was no difference in the response according to the site of the lesion (p = .75). The most frequent complication was recurrence (n = 11, 23.4%), and swelling occurred in 5 patients (10.6%). No patient had facial or phrenic nerve palsy or hoarseness. Two patients had persistent pain, and 2 had an infection (4.3%). CONCLUSION Intralesional bleomycin injection could be an effective therapy for lymphangiomas. The procedure has a low complication profile, and long-term study is recommended to evaluate the systemic and late bleomycin injection complications.

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