Development of a testicular haemangioma after interferon therapy for hepatic haemangiomas: a case report

We report a 2-month-old Japanese boy presenting with large multiple haemangiomas invading his liver. He was treated with daily subcutaneous injection of interferon alfa (IFN-alpha)-2a with progressive reduction of the hepatic haemangioma. He developed a scrotal mass 2 months after discontinuation of IFN, and this mass eventually required surgical management. Resected tumour was a juvenile haemangioma. The escape of this haemangioma from IFN therapy may be correlated to the quite low level of injected IFN in testis.

IFN therapy may not be curative for testicular haemangioma although it is effective in shrinking haemangiomas of the liver and skin.