Ebine Takashi, Ohara Rei, Momma Tetsuo, Saito Shiro, Kuramochi Shigeru
Department of Urology, National Tokyo Medical Center, Tokyo, Japan.
Int J Urol. 2004 Apr;11(4):232-4. doi: 10.1111/j.1442-2042.2003.00771.x.
A 31-year-old-female presented with a left renal mass detected incidentally during an abdominal ultrasound examination. Computed tomography and angiography revealed a hypovascular solid tumor 4.5 cm in diameter at the middle portion of the left kidney. Laparoscopic left nephrectomy was performed and macroscopic examination of the specimen revealed encapsulated tumor with grayish yellow cut surface. Histological examination demonstrated that the tumor cells were small scant cytoplasms, containing round and regular nuclei, forming a glomerular-like structure. There was no mitosis nor cellular atypia indicating a malignant structure. The histological diagnosis was metanephric adenoma.
一名31岁女性在腹部超声检查时偶然发现左肾肿物。计算机断层扫描和血管造影显示左肾中部有一个直径4.5厘米的低血供实性肿瘤。行腹腔镜左肾切除术，标本大体检查显示为有包膜的肿瘤，切面呈灰黄色。组织学检查表明，肿瘤细胞小，胞质稀少，细胞核圆形且规则，形成肾小球样结构。未见有丝分裂及细胞异型性，提示为良性结构。组织学诊断为后肾腺瘤。
