後腹膜リンパ節転移が嚢胞を形成した腎腫瘍の1例

A CASE OF RETROPERITONEAL CYST DEVELOPED FROM LYMPHNODES METASTASIS OF THE RENAL CELL CARCINOMA

　腎癌の後腹膜リンパ節転移は手術時または剖検時にしばしば発見されるが，このリンパ節転移が嚢胞化することは比較的少ない。著者らは最近，腎乳頭状腺癌の傍大動脈リンパ節転移が大きな後腹膜嚢胞を形成し，これが腎癌の初発症状であつた興味深い1症例を経験したので，ここに報告する。

A 76 year-old woman, who had been suffering from hypertension for 20 years, visited our hospital for gross hematuria and right flank pain. She was told having a palpable mass in the right flank by her family doctor two years ago. but gave no consideration because she was symptomless.

An excretory pyelogram showed right non-functioning kidney. A retrograde study revealed a filling defect with deformity of the right kidney. The right renal artery was not visualized by aortography.