Kodama Koichi, Imao Tetsuya, Komatsu Kazuto
Department of Urology, Toyama City Hospital, 2-1 Imaizumihokubu-cho, Toyama 939-8511, Japan.
Case Rep Med. 2011;2011:394326. doi: 10.1155/2011/394326. Epub 2011 Mar 30.
Metastases from a variety of malignant tumors can involve the ureters, but ureteral involvement by lung cancer is extremely rare and usually described at autopsy. We report a rare case of a 76-year-old man who presented with a three-month history of right flank dullness and was noted to have a nonhomogeneous retroperitoneal mass with hydronephrosis of the right kidney on computed tomography of the abdomen. Computed tomography of the thorax showed a nodule in the lower lobe, measuring 3 × 2 cm, in the right lung. After excluding the presence of other primary tumors and metastases, we reached a final diagnosis of solitary retroperitoneal metastasis of adenocarcinoma of the lung. Although rare, in patients of non-small cell lung cancer, presence of hydronephrosis should alert the physician to the possibility of metastasis.
多种恶性肿瘤的转移灶可累及输尿管，但肺癌累及输尿管极为罕见，通常在尸检时才被描述。我们报告一例罕见病例，一名76岁男性，有三个月的右侧腰部钝痛病史，腹部计算机断层扫描显示有一个不均匀的腹膜后肿块，右肾积水。胸部计算机断层扫描显示右肺下叶有一个3×2厘米的结节。在排除其他原发性肿瘤和转移灶后，我们最终诊断为肺腺癌孤立性腹膜后转移。虽然罕见，但在非小细胞肺癌患者中，出现肾积水应提醒医生注意转移的可能性。
