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Title: 腎リンパ管腫の1例
Other Titles: Renal lymphangioma: report of a case
Authors: 山口, 唯一郎  KAKEN_name
木内, 利明  KAKEN_name
安原, 裕美子  KAKEN_name
垣本, 健一  KAKEN_name
小野, 豊  KAKEN_name
目黒, 則男  KAKEN_name
前田, 修  KAKEN_name
宇佐美, 道之  KAKEN_name
Author's alias: Yamaguchi, Yuichiro
Kinouchii, Toshiaki
Yasuhara, Yumiko
Kakimoto, Kenichi
Ono, Yutaka
Meguro, Norio
Maeda, Osamu
Usami, Michiyuki
Keywords: Lymphangioma
Kidney
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: 113
End page: 115
Abstract: 55歳男。慢性B型肝炎で経過観察していたところ, 4年前に腹部エコーで右副腎下極に単純性嚢胞を認め, その後多房性嚢胞となった。サイズは発見時1.0cmであったが, 多房性嚢胞は全体として5.5cmであった。腹部CTでは右腎下極に突出した嚢胞性病変が集簇しており, 嚢胞間組織は造影された。嚢胞性腎細胞癌の可能性を否定できず, ハンドアシスト鏡視下に根治的右腎摘除術を施行した。術中・術後は問題なく経過した。摘出標本で右腎下極に多房性腎嚢胞を認め, 嚢胞内容液は淡黄色であった。HE染色では多房性の嚢胞から成る腫瘍であり, CTで造影された嚢胞間組織は正常腎実質で占められていた。また, 嚢胞は扁平な一層の細胞によって覆われており, リンパ管内皮細胞のマーカーであるD2-40染色が陽性で, 腎リンパ管腫と診断した。
Renal lymphangioma is a very rare benign tumor caused by failure in the development of the lymphatic communication system. Since December 1997, a 55-year-old man with chronic B-type virus hepatitis has been followed at our hospital. Neither kidney showed any sign of cysts at that time. In November 2000, ultrasound sonography showed a right renal simple cyst measuring 1.0 cm in diameter. Thereafter, the initial cyst increased to 5.5 cm and numerous right renal cysts, appearing similar to multilocular renal cysts, were detected in December 2004. Computed tomography demonstrated a right renal multilocular cystic tumor, 5.5 cm in diameter, which was enhanced by contrast medium. Radical nephrectomy was performed, and the pathological diagnosis was renal lymphangioma based on positive staining with D2-40 antibody, which is reactive to endothelial cells of the lymphatics.
URI: http://hdl.handle.net/2433/71349
PubMed ID: 17352161
Appears in Collections:Vol.53 No.2

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