Metastasis of uterine carcinosarcoma to the accessory spleen: an unusual recurrence pattern

摘要

Patients with uterine carcinosarcoma have poor prognoses, and the disease frequently metastasizes to the abdominal cavity. Uterine tumor metastasis to an accessory spleen has never been reported previously. The authors report a 68-year-old Japanese woman with uterine carcinosarcoma recurring in an accessory spleen 12 years after initial hysterectomy. This solitary recurrent lesion was successfully resected and it comprised metastatic tumor cells that closely resembled a primary uterine carcinosarcoma. This case demonstrates that uterine carcinosarcoma is able to metastasize to an accessory spleen and this is the rare case of a long-term survival of a uterine carcinosarcoma patient. The authors propose that complete surgical resection of the recurrent lesion will contribute beneficially to patient survival.