Kubota Yasuaki, Seike Kensaku, Maeda Shinichi, Tashiro Kazuhiro
Department of Urology, TOYOTA Memorial Hospital.
Hinyokika Kiyo. 2010 Apr;56(4):225-8.
Carcinoid tumors are low-grade malignant tumors that arise from neuroendocrine cells. Primary renal carcinoid tumors are extremely uncommon. A 63-year-old woman presented with a right abdominal mass and fever. Abdominal computed tomography demonstrated a mass in the right kidney; the mass measured 120 mm in diameter and showed hemorrhage. The patient underwent an uneventful right radical nephrectomy, and histological appearance was typical of carcinoid tumor. Immunohistochemistry demonstrated strong cytoplasmic labeling for neuron-specific enolase and synaptophysin. Additional examinations of the gastrointestinal tract did not show any evidence of carcinoid tumors. The patient remains free from disease recurrence at 8 months after the operation. The prognosis for primary renal carcinoid tumor is relatively optimistic. Complete surgical excision is the only recommended treatment for localized renal carcinoid tumor.
类癌肿瘤是起源于神经内分泌细胞的低度恶性肿瘤。原发性肾类癌肿瘤极为罕见。一名63岁女性因右腹部肿块和发热就诊。腹部计算机断层扫描显示右肾有一肿块；肿块直径为120毫米，有出血表现。患者接受了顺利的右肾根治性切除术，组织学表现为典型的类癌肿瘤。免疫组化显示神经元特异性烯醇化酶和突触素在细胞质中有强阳性标记。胃肠道的其他检查未发现类癌肿瘤的任何证据。患者术后8个月无疾病复发。原发性肾类癌肿瘤的预后相对乐观。对于局限性肾类癌肿瘤，唯一推荐的治疗方法是完整的手术切除。
