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Title: Low grade, low stageであったベリニ管癌の1例
Other Titles: Bellini duct carcinoma of the kidney: a case report
Authors: 吉田, 健志  KAKEN_name
木下, 秀文  KAKEN_name
谷口, 久哲  KAKEN_name
地崎, 竜介  KAKEN_name
西田, 晃久  KAKEN_name
日浦, 義仁  KAKEN_name
大口, 尚基  KAKEN_name
河, 源  KAKEN_name
六車, 光英  KAKEN_name
松田, 公志  KAKEN_name
坂井田, 紀子  KAKEN_name
植村, 芳子  KAKEN_name
Author's alias: Yoshida, Kenji
Kinoshita, Hidefumi
Taniguti, Hisanori
Chizaki, Ryusuke
Nishida, Teruhisa
Hiura, Yoshihito
Ooguti, Naoki
Kawa, Gen
Muguruma, Kouei
Matsuda, Tadashi
Sakaida, Noriko
Uemura, Yoshiko
Keywords: Bellini duct carcinoma
Low grade
Issue Date: Feb-2007
Publisher: 泌尿器科紀要刊行会
Journal title: 泌尿器科紀要
Volume: 53
Issue: 2
Start page: 121
End page: 124
Abstract: 65歳男。人間ドックで右腎の腫瘍を指摘された。腹部超音波で腎実質内に低エコーの充実性腫瘍を認め, 単純CTでは腎実質と等吸収域で, 造影CTでは平衡相でごくわずかに腫瘍辺縁が造影された。MRIではT1強調像でhypo-intensityを示し, ガドリニウム造影の後期相で軽度造影効果を認めた。T2強調像ではhyper-intensityであった。腎細胞癌の所見としては非典型的であったが, 乏血管性の腎腫瘍と考え, 後腹膜鏡下右腎摘除術を施行した。摘出標本で, 腫瘍は長径5cm, 偽被膜を伴い, 正常腎実質との境界は明瞭で, 腎盂内への浸潤はなかった。病理所見では好酸性胞体を有し管状発育を中心とした幅広い間質を認め, 類洞形成は認めなかった。免疫染色では遠位尿細管・集合管上皮細胞由来EMA, AE-1などの上皮膜抗原が陽性であった。最終的にベリニ管癌, G2(Fuhrman grading system), pT1bN0M0, v(-), ly(-)と診断した。術後36ヵ月経過し, 転移・再発はない。
We report a case of Bellini duct carcinoma. A 65-year-old man visited our hospital because of an asymptomatic right renal mass directed by ultrasonography and computed tomography in an other hospital. His urine cytology was negative. The tumor showed a minimal enhancement in computed tomography. Under the preoperative diagnosis of an atypical right renal tumor, laparoscopic right radical nephrectomy was performed. The tumor is 50 mm in diameter and the surface was grayish-white in color. The histopathological diagnosis was low-grade Bellini duct carcinoma. Immunohistostaining revealed positive staining for UA-1 and EMA in the tumor tissue. No evidence of recurrence or metastasis was noted 36 months after surgery without any adjuvant therapy.
PubMed ID: 17352163
Appears in Collections:Vol.53 No.2

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