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タイトル: | 化学療法後残存腫瘍に対するFDG-PET の解釈に苦慮したセミノーマの1例 |
その他のタイトル: | A Case of Metastatic Seminomatous Testicular Tumor with Complicated Diagnosis by FDG-PET |
著者: | 橋爪, 章仁 水野, 伸彦 河合, 正記 岸田, 健 |
著者名の別形: | Hashizume, Akihito Mizuno, Nobuhiko Kawai, Masaki Kishida, Takeshi |
キーワード: | Testicular tumor Seminoma FDG-PET |
発行日: | 31-Jul-2016 |
出版者: | 泌尿器科紀要刊行会 |
誌名: | 泌尿器科紀要 |
巻: | 62 |
号: | 7 |
開始ページ: | 383 |
終了ページ: | 387 |
抄録: | 18F-fluorodeoxy glucose positron emission tomography (FDG-PET) for evaluation of the post chemotherapy residual tumor of the seminomatous testicular germ cell tumor is recommended by several guidelines. We report a case whose residual tumor was evaluated by FDG PET but the results were difficult to interpret. A 41-year-old male with left seminomatous germ cell tumor of the testis and 60 mm retroperitoneal lymph node (RPLN) metastasis was referred to our hospital. The International Germ Cell Consensus Classification (IGCCC) was good prognosis. After high orchiectomy, three cycles of bleomycin, etoposide, and cisplatin (BEP) chemotherapy normalized the tumor marker and the RPLN decreased to 15 mm. The standardized uptake value (SUV) max at the RPLN by FDG-PET was 2.93. Although residual viable cells were suspected, the SUV max was relatively low. Thus surveillance without additional therapy was selected. After observation for 25 weeks, the tumor grew to 25 mm. Then four cycles of paclitaxel, ifosfamide, and cisplatin (TIP) chemotherapy were indicated for the recurrence. The RPLN was decreased to 15 mm, but the SUV max was still as high as 2.67 at 6 weeks after the last chemotherapy. We dissected the residual tumor suspecting viable cancer, but the pathological examination revealed necrotic tissue without any viable cells. He has had no signs of recurrence for 1 year and 9 months after the operation. |
著作権等: | 許諾条件により本文は2017/08/01に公開 |
DOI: | 10.14989/ActaUrolJap_62_7_383 |
URI: | http://hdl.handle.net/2433/216308 |
PubMed ID: | 27569358 |
出現コレクション: | Vol.62 No.7 |
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