The Impact of Adjuvant Sirolimus Therapy in the Surgical Management of Scrotal Slow-Flow Vascular Malformations.

To describe the effects of oral sirolimus administered before and after surgical resection of slow-flow vascular malformations of the scrotum in pediatric patients. Retrospective review of 3 patients presenting with complex lymphatic-venous malformations of the scrotum who received adjuvant oral sirolimus 3 months before and 3 months after surgical resection. Demographic data, clinical course, imaging findings, and management strategies were reviewed for each patient. In each of the 3 patients, there was a significant volume reduction of the lesion within the 3 months after initial dose of sirolimus. Scarce lymphatic leakage during and after surgery was reported, associated with an adequate wound healing. Two years after the last postsurgical dose of sirolimus, all patients remain asymptomatic without any lymphatic leakage or lesion recurrence. Combined lymphatic-venous vascular malformations of the male genitalia are rare but associated with high morbidity and challenging treatment options. Pre- and postsurgical adjuvant treatment with oral sirolimus seems to be a promising therapeutic option that provides reduction of the lesion size before surgery and improvement of postsurgical recovery and wound healing.

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