Background: The aim of this study is to report on patients who developed tumor recurrence of the lung or de novo pulmonary malignancies after living donor liver transplantation (LDLT) and to show the benefit of a surgical resection for these pulmonary malignant tumors.
Methods: A total 246 patients who underwent LDLT were investigated.
Results: Pulmonary malignant tumors after LDLT were observed in 12 (4.9%) of 246 patients studied. These patients included 9 tumor recurrences and 3 de novo malignancies. The frequency of pulmonary recurrence was 9.4% (9 of 96 patients) and that of pulmonary de novo malignancies including 2 primary lung cancer and 1 mucosa-associated lymphoid tissue (MALT) lymphoma, was 1.2% (3 of 246 patients). Four of 9 recurrent patients could undergo surgical resections and the survival range in patients who received surgery was 17 to 56 months with a mean of 36 months after LDLT; on the other hand, the survival range in patients that could not undergo a surgical resection was 4 to 26 months with a mean of 18 months. Among the de novo malignancies, only the MALT lymphoma patient could undergo a surgical resection. Repeated surgical resections of pulmonary malignant tumors could be performed in 3 patients and all these patients have been long-term survivors.
Conclusions: These results suggest a surgical resection of pulmonary malignancies including tumor recurrences or de novo malignancies after LDLT is a feasible procedure and may prolong survival in selected patients, even under immunosuppressive conditions.
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