Metastatic melanoma to the kidney presenting with renal vein tumor thrombus

We report on a patient with metastatic melanoma to the kidney who presented with a renal vein thrombus to the inferior vena cava. Three years after his initial lesion of the scalp, a 34-year-old Egyptian man was found to have two brain metastases and an 11-cm left renal metastasis with a tumor thrombus in the renal vein. After resection of the brain metastases, with no evidence of additional metastases, the patient underwent left radical nephrectomy and tumor venous thrombectomy. The patient later had tumor recurrence at multiple sites. He did not respond to systemic treatment and died 5 months later.     

Two cases of renal cell carcinoma arising in the native kidney following renal transplantation--clinical study and review of 26 cases reported in Japan

Renal transplant recipients have an increased risk of developing malignancies due to long-term immunosuppression. Two cases of renal cell carcinoma arising from the native kidney following renal transplantation are reported. Case 1; A 60-year-old man underwent cadaveric renal transplantation on July 31, 1995. He had resumed hemodialysis because of graft failure on June 5, 2000. He was referred to our hospital with macroscopic hematuria on March, 2002. Computed tomography (CT) demonstrated a right renal mass of about 3.0 cm in diameter with bilateral acquired cystic disease of the kidney (ACDK). The radical nephrectomy was performed. Case 2; A 55-year-old man underwent cadaveric renal transplantation on November 15, 1996. He had resumed hemodialysis because of graft failure on June 5, 1996. A left renal mass measuring 3.0 cm in diameter as well as bilateral ACDK were found by CT on July, 2002. Left radical nephrectomy was performed. The histological diagnosis of both renal tumors was renal cell carcinoma, clear cell type, G2, pT1a. Fifty-six renal transplantations (48 were renal allografts from cadavers, while 8 were from living donors) were performed in our hospital from 1980 to 2002. Two patients (3.6%) developed renal cell carcinoma after transplantations. We also discuss a clinical study and review of 26 cases reported in Japan. Since the incidence of malignant neoplasia is high, CT and ultrasonography should be performed routinely on the patients with renal transplantation.     

Active chemotherapy with gemcitabine, carboplatin and docetaxel for three patients with MVAC-resistant liver metastasis of urothelial carcinoma

We report three cases with methotrexate-vinblastin-adriamycin-cisplatin (MVAC) resistant multiple liver metastases of urothelial carcinoma that responded to combination chemotherapy consisting of gemcitabine plus carboplatin (GC) with additional docetaxel (GCD) as salvage chemotherapy. Case 1: A 55-year-old man underwent left nephroureterectomy for ureteral cancer (TCC, G3, pT3pN1M0). Three courses of GC followed by three courses of GCD were given via intra-hepatic arterial infusion for multiple liver metastases, which appeared after adjuvant high-dose MVAC therapy. Complete response was obtained and maintained for 11 months. Case 2: A 46-year-old man underwent radical cystectomy for locally advanced bladder cancer (TCC G3 + adenocarcinoma. pT3pN0M0). Two courses of GC followed by 2 courses of GCD systemic therapies were performed for multiple liver metastases, which appeared after adjuvant high-dose MVAC therapy. Partial response was obtained and maintained for six months. Case 3: A 66-year-old man received three courses of MVAC for multiple metastases of the bladder cancer (TCC, G3, > pT2), which resulted in disease progression. Eight courses of GC followed by six courses of GCD were administrated via intra-hepatic arterial infusion. Partial response was obtained and maintained for 12 months. Although the response duration was still short, GC and GCD may be promising salvage chemotherapeutic regimens for the patients with MVAC-resistant liver metastases of urothelial carcinoma.     

A case of pulmonary metastasis from renal cell carcinoma with complete response to interferon-alpha and tegafur/uracil (UFT) but possibly UFT-induced liver dysfunction and leukoencephalopathy-like symptoms]

A 61-year-old man presented with gross hematuria. He underwent left radical nephrectomy under a diagnosis of left renal cell carcinoma without distant metastasis, but bilateral multiple pulmonary metastases appeared 2.5 months after the operation. Though the metastases responded well to combination therapy of interferon-alpha and a 1:4 mixture of tegafur and uracil (UFT), the side effects of liver dysfunction and leukoencephalopathy-like symptoms due to UFT appeared 7 months after the beginning of the chemotherapy. These side effects were improved after the cessation of UFT administration.     

Ureteral and bladder metastases of renal cell carcinoma following synchronous renal cell carcinoma and bladder cancer; a case report

A 73-year-old man presented with gross hematuria. Ultrasonography and computerized tomography showed small bladder tumors and a left renal mass protruding to renal pelvis. Transurethral resection of bladder tumor and ureteroscopic tumor biopsy were performed, and pathological examinations revealed transitional cell carcinoma in the bladder and renal cell carcinoma in the kidney. He underwent left radical nephrectomy. A 4-month postoperative cystoscopy revealed a solitaly non-papillary tumor in the bladder. Transurethral resection was performed and pathological diagnosis was metastasis from renal cell carcinoma. At that time, multiple metastases to ureteral stump and lung were found. He had undergone palliative treatment because of his poor general condition until he died 26 months postoperatively. Care should be taken for management of ureteral stump when diagnostic ureteroscopy was done for renal cell carcinoma invading the renal pelvis.     

转移性恶性肾血管平滑肌脂肪瘤三例报告

目的 探讨转移性恶性肾血管平滑肌脂肪瘤(AML)的诊断和治疗. 方法转移性恶性AML患者3例.男1例,女2例.年龄分别为36、55和37岁.主诉为持续性患侧腰痛1～6个月.2例B超、CT检查发现患肾实性占位.1例B超见肾肿块内不均匀高回声光团,CT测得脂肪负值信号.2例行根治性肾切除术,1例行肾切除术.3例均未放化疗. 结果 肿块切面灰红、灰黄,质软.病理镜下观察:2例瘤细胞呈上皮样,核有异型,伴坏死;1例大多区域为梭形平滑肌,脂肪细胞和血管混杂生长,部分区域细胞呈上皮样.免疫组化结果 均为VM(+),HMIM5(+),Melan-A(+),S-100(-),CK(-).3例病理诊断均为恶性肾AML,2例为上皮样型,1例为经典型、部分上皮样型.1例术后7年出现肺转移,行肺叶切除加清扫,随访12年无瘤生存.1例术后6年复发,行肿块切除术;术后lO年发现肝、后腹膜转移,再行肿块部分切除,随访12年带瘤生存.1例术后4个月出现肝、后腹膜转移,行肿块部分切除,3个月后失访. 结论 恶性肾AML罕见,诊断依靠病理和免疫组化检查.治疗方法无特殊.     

A case of renal cell carcinoma metastasizing to the contralateral kidney and renal pelvis

Extremely rarely renal cell carcinoma metastasizes to the contralateral renal pelvis or ureter. A 42-year-old man had undergone left radical nephrectomy for renal cell carcinoma (pT1b, grade 2) in March, 2000. Fifteen months later, he complained of macroscopic hematuria. Computed tomographic scanning and retrograde pyelography showed a right renal pelvic tumor. Enucleation of pelvic tumor was performed and a parenchyma mass incidentally identified in the right kidney was also resected. Histopathological examination of each tumor revealed renal cell carcinoma identical to the primary tumors in the left kidney suggesting metastasis to renal pelvis and de novo tumor or metastasis in the right kidney.     

三例肾脏原发少见肿瘤的临床特征及诊治分析

目的总结分析3例肾脏原发少见肿瘤的临床特征及诊治方法,提高对肾脏原发少见肿瘤的认识。 方法回顾性分析2018年5月至9月于中山大学附属第七医院泌尿外科诊治的术后病理证实的3例肾脏原发少见肿瘤的临床资料。 结果3例患者分别为：（1）54岁女性,因体检发现左肾占位1周入院,CT提示左肾巨大软组织肿块及肾门多个肿大淋巴结,行腹腔镜下根治性左肾切除术+淋巴结清扫术,术后病理：肾黏液管状与梭形细胞癌,术后3个月随访肿瘤无复发转移;（2）44岁男性,因左侧腰腹部胀痛1个月入院,MR提示左肾巨大占位病变,开放探查见肿瘤与降结肠粘连明显,遂行根治性左肾切除+降结肠部分切除术,术后病理：肾脏癌肉瘤,术后1个月局部复发并腹腔内多发转移,入肿瘤内科后辅以紫杉醇+多柔比星化疗及阿帕替尼靶向治疗,目前未观察到肿瘤继续恶化;（3）70岁男性,因左侧腰痛伴肉眼血尿3个月入院,CT提示左肾上极不规则低密度灶及腹膜后多发肿大淋巴结,行腹腔镜下根治性左肾切除+淋巴结清扫术,术后病理：高级别浸润性尿路上皮癌,拟二次手术,患者拒绝,术后6个月随访肿瘤无复发转移。 结论肾脏原发少见肿瘤临床症状及影像学表现常无明显特异性,容易误诊,应注意鉴别诊断,治疗以根治性切除为主,部分肿瘤预后不良,术后需密切随访,必要时尽早辅以放化疗及靶向治疗。     

Prostatic metastasis of renal cell carcinoma

A 71-year-old man underwent a radical nephrectomy for right renal cell carcinoma in April, 2005. Pathological findings revealed clear cell carcinoma, G3＞G2, pT3a. Three years later, he underwent a craniotomy for tumor resection of solitary brain metastasis. In October, 2008, he came to our hospital because of urinary retention. Benign prostate hypertrophy was diagnosed by ultrasonography and digital rectal examination. Serum prostate specific antigen level was 2.55 ng/dl. While he was treated with oral α 1-blocker initially, a urethral catheter was inserted in December, 2009. Because of frequent obstruction of the catheter by hematuria, transureathral prostectomy was performed. Pathological findings revealed prostatic metastasis of renal cell carcinoma. Metastasis of renal cell carcinoma to the prostate is rare, and only 7 cases including the present case have been reported.     

Bladder metastasis from renal cell carcinoma three years after nephrectomy

A 47-year-old man presented with gross hematuria. He underwent right nephrectomy for renal cell carcinoma (clear cell subtype, pT1N0M0) three years ago. Cystoscopy revealed a solitary, non-papillary tumor in the middle of the inter-ureteric ridge. Transurethral resection of the tumor was done. Histological diagnosis was renal cell carcinoma (clear cell subtype). This was considered to be a metastatic tumor from the renal cell carcinoma treated three years earlier. This case may represent a so-called latent distant metastasis.     

Port-site metastasis: the influence of biology

OBJECTIVE: Several surgical and technical mechanisms have been proposed for the development of port-site metastasis, but the influence of tumor and host biologic factors has not been emphasized. We present a case of a pelvic chordoma that metastasized to a prior laparoscopic radical nephrectomy port-site. METHODS: A 62-year-old woman underwent laparoscopic radical nephrectomy (LRN) for a pT1b grade 3 renal cell carcinoma, followed 6 weeks later by resection of a sacral chordoma. The incisions and areas of dissection for the two procedures were discontinuous. RESULTS: Eight months following the LRN she developed a nodule in one of the laparoscopic port-sites. The port-site metastasis was treated with wide surgical resection, which was confirmed as metastatic chordoma on histologic examination. CONCLUSION: Based on the chronological sequence and physical distance between surgical sites, only biological factors could have contributed to this port-site metastasis. This unusual case highlights the important role that tumor and host biologic mechanisms play in the development of port-site metastasis.     

Bladder metastasis of renal cell carcinoma : report of a case

A 65-year-old man presented with gross hematuria in 2004. Computed tomography (CT) showed a left renal mass, and he underwent laparoscopic radical nephrectomy. Pathological diagnosis was clear cell carcinoma (pT2N0M0, G2＞G3). Four years later, a right adrenal tumor was disclosed by follow-up CT. Then laparoscopic adrenectomy was performed. Histology showed metastasis of the renal clear cell carcinoma. In 2009, he noticed gross hematuria, and cystoscopy revealed a 2cm solitary, non-papillary tumor at the anterior wall of the bladder. At the same time, small solitary liver metastasis (6 mm) was observed on abdominal CT. Transurethral resection of the bladder tumor and resection of liver tumor was performed, and pathological diagnosis was clear cell carcinoma both in vesical and hepatic masses. Nine months after the last surgery, he is living with no obvious tumor recurrence. To our knowledge this case is the 34th case of bladder metastasis from renal cell carcinoma in the Japanese literature. We reviewed literature and discuss the clinical features of bladder metastasis of renal cell carcinoma.     

Renal cell carcinoma with bilateral adrenal and small intestinal metastases: a case report

A 69-year-old man who had a complaint of melena and hematemesis was referred to our hospital for further evaluation and treatment of renal masses, bilateral adrenal swelling and a tumor in the small intestine. The abdominal CT scan demonstrated two tumors sized 45 mm and 15 mm in diameter, located in the center and lower pole of the left kidney. Bilateral adrenal swelling and a small intestinal tumor with invagination were also observed. We diagnosed left renal cell carcinomas with bilateral adrenal metastases or hyperplasia, and a primary or metastatic small intestinal tumor. He received left radical nephrectomy, right adrenalectomy, and small intestinal resection. Pathological diagnosis was renal cell carcinoma, granular cell carcinoma, G2>G3>G1, INFalpha, v (+), pT1a, pM1, Stage IV. Bilateral adrenal swelling and small intestinal tumor were metastases from the renal cell carcinoma After operation, we administered interferon-alpha and steroid replacement. He died after 27-month follow-up period because of renal cell carcinoma. Renal cell carcinoma with simultaneous metastases to bilateral adrenal glands and the small intestine is extremely rare.     

Synchronous nephrectomy and right hepatectomy for metastatic chromophobe renal cell carcinoma: report of a case and review of the literature

The prognosis of metastatic renal cell carcinoma is poor, since non-operative modalities for advanced renal carcinoma have failed to yield effective results. In fact, there is no indication for radiotherapy, except for palliative treatment of symptomatic bone metastases, and systemic chemotherapy is not effective. Despite the promising early results with immunotherapy, a complete response occurs in less than 15% of patients and is rarely lasting. Surgery, when indicated, seems to be the only therapeutic option possible. Liver metastases occur in 20% of cases and are often multiple. Experience with hepatectomy for metastatic renal tumours has rarely been reported. Not only does a small group of patients have isolated liver metastases that may be treated with radical surgery, but also extrahepatic metastases ordinarily coexist at the time of diagnosis. We report a case of a 55-year-old man with a chromophobe renal cell carcinoma with a single synchronous hepatic metastasis that were treated simultaneously with radical nephrectomy and right hepatectomy. To the best of our knowledge this is the first case of a single metastasis of a chromophobe renal cell carcinoma treated with synchronous kidney and hepatic resection.     

Bladder cancer with skin metastasis: a case report

Bladder carcinoma with skin metastasis is extremely rare. We herein report a case of a bladder tumor with skin metastasis. A 68-year-old man was referred to our hospital with macroscopic hematuria. Cystoscopy revealed a trigone papillary tumor. Transurethral resection of bladder tumor (TURBT) was performed and the pathological diagnosis was transitional cell carcinoma (TCC), pT1, G3. Thereafter, he received several courses of TURBT, intravesical chemotherapy (pirarubicin, bacillus Calmette-Guerin and mitomycin C) and intra-arterial chemotherapy because of recurrence. Thirteen years later, he underwent total cystoprostatectomy with neobladder formation. Histological examination revealed muscle-invasive bladder cancer with a staging of T3bNOM0. Two years and three months later, multiple firm nodules with eruptions appeared on the skin in several regions; they were resected and the histological findings revealed TCC. This indicated metastatic spread from the primary bladder TCC. He received only supportive treatment during this period due to renal dysfunction. He died four months after the manifestation of the skin metastasis due to multiple metastases.     

Laparoscopic nephrectomy, ex vivo partial nephrectomy followed by allograft renal transplantation

A shortage of available kidneys exists. Forty percent of patients with end stage renal disease wait more than 2 years for renal transplant. We report a case of a 22-year-old man who underwent laparoscopic radical nephrectomy for a 2-cm central renal mass. Ex vivo partial nephrectomy and renorraphy were performed. The reconstructed kidney was allotransplanted to a 62-year-old man with end stage renal disease. The recipient has excellent graft function. Imaging shows no evidence of recurrence or metastasis at 2 years' follow-up. Incidence and management of de novo renal cell carcinoma in renal allografts are reviewed.     

Renal cell carcinoma with an infrarenal vena caval tumor thrombus

Extension of renal cell carcinoma (RCC) along venous drainage pathways is a well-recognized entity. All previously reported cases of inferior vena cava (IVC) involvement by RCC have been with tumor thrombus in the suprarenal IVC. We report a 45-year-old man who had RCC arising from the lower pole of the right kidney with a tumor thrombus totally occluding the infrarenal IVC. The patient underwent radical nephrectomy with successful ligation and resection of the infrarenal IVC.     

Metastatic lung tumor: report of two cases

We herein report 2 cases of metastatic lung tumor. The first case was a 59-year-old female, who had undergone a left radical mastectomy for the treatment of breast cancer 18 years before. She was found to have a pulmonary nodule in the left lower lobe on the routine chest radiograph. She underwent a video-assisted thoracic surgery (VATS) partial resection of the left lower lobe. Tumor was diagnosed as a lung metastasis of the breast cancer microscopically. The second case was a 77-year-old man, who had undergone a right nephrectomy for the treatment of renal cell carcinoma. He was found to have 2 nodules in the right lung (1 in the middle lobe and the other in the lower lobe) on the follow-up computed tomography (CT) scan of the chest. He underwent VATS partial resections of the right middle and lower lobes. While the tumor in the lower lobe was diagnosed as a lung metastasis of the renal cell carcinoma, the tumor in the middle lobe turned out a primary lung cancer.     

Local advanced lung cancer invaded thoracic vertebral bodies with unruptured cerebral aneurysm

A 57-year-old man presented with the chief complaint of left shoulder pain in June 2001, and paridrosis of left upper trunk and left upper limb in July 2001. Head magnetic resonance imaging (MRI) showed 8 mm sized unrupture aneurysm of left middle cerebral artery, and chest computed tomography (CT) showed the lung tumor invaded thoracic vertebral bodies. The local advanced lung carcinoma (cT4N0M0) and unrupture aneurysm of left middle cerebral artery was diagnosed. The prevented clipping of unrupture aneurysm was performed at 11th September 2001, and left upper lobectomy, hemivertebrectomy and reconstruction of thoracic vertebral body (Th 3-5) with Modul' ICS at 12th October 2001. The pathological findings revealed squamous cell carcinoma. The staging was pT4N0M0, IIIB. The postoperative course was uneventful. After the radiotherapy (50 Gy), chemotherapy (gemcitabine and vinorelbine) was performed. But the radiation pneumonia was occurred and chemotherapy was intermitted. The steroid was administrated due to the radiation pneumonia, and the complication was improved. He discharged at 17th April 2002 and had no recurrence. The prevented clipping of unrupture cerebral aneurysm and the reconstruction of thoracic vertebral body (Th 3-5) with Modul' ICS were useful for the radical operation of the local advanced lung cancer.     

Prolonged complete remission of multiple organ metastases after radical nephrectomy induced by interferon-alpha therapy: a case report

We experienced a case of advanced renal carcinoma that showed complete remission to interferon-alpha therapy. A 76-year-old male underwent radical nephrectomy for left renal cell carcinoma (pT3b pN0 M0, stage III). Two and a half months later, chest X-ray, computed tomographic (CT) scan and ultrasonography revealed multiple lung metastases and a hepatic metastasis simultaneously. We started the intramuscular administration of natural interferon-alpha (OIF, 5 MIU) combined with cimetidine everyday. It caused leukopenia, a possible side-effect of interferon-alpha. We reduced the dose to three times a week. The lung metastases and hepatic metastases disappeared after 5 and 12 months, respectively. After we reduced the dose to once a week, there was no evidence of disease for 21 months.