卵巣の腫大を認めない腹膜原発卵黄嚢腫瘍を経験した。初回手術後は腹膜原発の明細胞腺癌ⅢC期の診断に至り、dose-dense TC療法（ddTC：パクリタキセル／カルボプラチン）を施行した。一時は奏功したが、腫瘍の増大傾向を認めた。卵黄嚢腫瘍の可能性も考慮されたために組織の再評価を行い、腹膜原発の卵黄嚢腫瘍の診断に至った。BEP療法（ブレオマイシン／エトポシド／シスプラチン）を施行し、緩解を得ている。
We experienced a case of primary peritoneal yolk sac tumor without ovarian enlargement. After initial surgery, stage IIIC clear cell adenocarcinoma of the peritoneum was diagnosed, and dose-dense paclitaxel-carboplatin chemotherapy was administered. Although the patient temporarily responded to the treatment, the tumor subsequently tended to grow. Considering the possibility of yolk sac tumor, histological examination was performed again. A diagnosis of primary peritoneal yolk sac tumor was finally made. Bleomycin-etoposide-cisplatin chemotherapy was administered, and the patient has remained in clinical remission.
診断に苦慮した腹膜原発卵黄嚢腫瘍の一例
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