A Case of Pulmonary Metastasis from Primary Mucinous Cystadenocarcinoma of the Vermiform Appendix.

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  • 肺転移再発をきたした虫垂原発粘液嚢胞腺癌の１例

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Abstract

A case is reported of solitary pulmonary metastasis from primary mucinous cystadenocarcinoma of the vermiform appendix. A 60-year-old woman complaining of right lower abdominal mass was admitted. Barium enema examination and CT findings of the abdomen suggested primary carcinoma of the vermiform appendix. On exploration, a tumor of the ileocecal region invading to the sigmoid colon and duodenum was found, so right hemicolectomy with sigmoid colectomy and partial resection of the duodenum was performed. Histological evaluation reveaeld mucinous systadenocarcinoma of the appen-dix. Four years after the operation, a solitary pulmonary metastasis of the left lung was found, and wedge resection was performed. The histological findings of the pulmonary tumor showed metastatic mucinous carcinoma origniating from carcinoma of the vermiform appendix. The patient is alive five years after the second operation. A review of the literature revealed that distant metastasis of primary mucinous cystadenocarcinoma of the vermiform appendix is very rare, so we reported this case.

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