Liver transplantation in Langerhans' cell histiocytosis (histiocytosis X).

Two children with biopsy-proven LCH underwent successful hepatic transplantation for end-stage liver disease. These patients were thought not to have active LCH disease at the time of transplantation, although one had developed a new osteolytic lesion a few months before the operation and the other had suspicious osteolytic lesions at the time of transplantation. The histologic examination of the excised liver showed features consistent with primary sclerosing cholangitis. The two patients had an excellent recovery with no evidence of progression of LCH or recurrence of the underlying disease in the hepatic allograft at 1 and 3 years after organ transplantation.