A Case of Peritoneal Serous Papillary Adenocarcinoma

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  • 腹膜原発漿液性乳頭状腺癌の1例
  • 症例 腹膜原発漿液性乳頭状腺癌の1例
  • ショウレイ フクマク ゲンパツショウエキセイ ニュウトウジョウセンガン ノ 1レイ

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Abstract

A 65-year-old woman was referred for abdominal distention. CT and MRI of the abdomen showed massive ascites and a soft-density mass with an irregular surface in the lower abdomen. High FDG uptake by this tumor was seen on positron emission tomography. The patient's serum CA125 level was high. Aspiration cytology of the ascites showed agglomeration of atypical cells.<BR>No abnormal findings were seen in the gastrointestinal tract, ovaries, and uterus. The patient underwent exploratory laparoscopic surgery, and the omental tumors were resected as much as possible. Pathological examination showed serous papillary adenocarcinoma with infiltrative growth, diagnosed as peritoneal serous papillary adenocarcinoma. Chemotherapy with paclitaxel+carboplatin, commonly used for ovarian cancer, was conducted postoperatively. Chemotherapy was temporarily successful, but the tumor and ascites increased. She remained in good general condition for concentrated ascites reinfusion therapy (CART), but she died 18 months after surgery. It is important to consider this type of case in the differential diagnosis of primary carcinoma of unknown origin.

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