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Role of lymphadenectomy in renal cell carcinoma.

A hilar or limited lymph node dissection will not remove the primary lymphatic drainage area of either kidney. For a lymphadenectomy to have a therapeutic benefit, an extended dissection is required, particularly for right-sided tumors. An extended lymphadenectomy may not be justified in all patients with renal cell carcinoma, particularly those with small tumors (who rarely have lymphatic disease) or grossly positive nodes (who have a high risk of existing distant metastases). For some patients with T3 or V+ tumors and palpably normal retroperitoneal nodes, an extended nodal dissection may resect microscopically involved nodes and result in an improved survival rate. This hypothesis will not be tested appropriately until a randomized controlled study is performed.

Carcinoma, Renal Cell↗

[Retroperitoneal approach and pelvic peritoneoectomy in the surgical management of advanced ovarian cancer].

OBJECTIVE: To share our experience in surgical management of advanced ovarian cancer applying a retroperitoneal approach and performing pelvic peritoneoectomy for the achievement of an optimal debulking in this disease. MATERIAL: Thirty eight patients age ranging from 36 to 77 years (average 55,7 years) staged: I - 2 (5,3%), II - 4 (10,5%), //III/ - 28 (73,7%) and IV - 4 (10,5%) had been operated on. Thirty patients presented without previous therapy, 3 - after total abdominal hysterectomy with adnexes, 1 - after supravaginal hysterectomy with adnexes, 1 - after unilateral adnexectomy and 3 - after neoadjuvant chemotherapy. METHODS: All 38 patients had been submitted to retroperitoneal approach during the laparotomy and it had been performed surgical procedures including various degrees of radicalness towards the pelvic structures (uterus, parameters vagina) with or without pelvic peritoneoectomy. The latter had been performed in 28 patients (73,7%). Selective lymph node dissection is carried out in 21 cases (55,3%), total omentectomy - in 36 cases (94,7%) and appendectomy - in 23 (60,5%). RESULTS: Maximal (no evidence of disease) and optimal (less than 2 cm lesion) cytoreduction is achieved in 23 (60,5%) and 8 (21,1%) patients, respectively - totally in 81,6% of all patients. The most common site of suboptimal (> 2 cm) residual masses is the anterior rectal wall and cavum Douglasi - 85,7%, Lymph node metastases is detected in 33%, metastases in omentum - in 75%, parametrial invasion - in 25%, vaginal metastases - in 8,3%, metastases in appendix and Fallopian tubes - in 47,8% and 8,8%, respectively and invasion of tumor's capsula - in 34, 2%. CONCLUSION: Retroperitoneal approach and pelvic peritoneoectomy are feasible and safe and lead to high percentage of optimal debulking, which is the main prognostic factor in advanced ovarian cancer patients.

Adult↗

Lymph node metastasis in a gynecologic malignancy.

A radical hysterectomy was performed on patients with stage IA2 to IIB cervical cancer. For these patients, many histopathological parameters have been reported to be prognostic factors of cervical cancer, such as a pelvic lymph node (PLN) metastasis, the histological subtype, the tumor diameter, the depth of the stromal invasion, a lymph-vascular space invasion (LVSI), a parametrial invasion, a corpus invasion and a vaginal invasion. Ovarian cancer is normally treated with cytoreductive surgery followed by chemotherapy. Although physicians have paid a great deal of attention to intraperitoneal disease, a substantial number of ovarian cancers have reported to involve the retroperitoneal lymph nodes. Therefore, a lymph node metastasis has been introduced into FIGO staging. However, the prognostic significance of a lymph node metastasis is controversial. In order to determine the possibility of individualizing a pelvic lymph node (PLN) dissection in patients with endometrial cancer, the relationship between PLN metastasis and the various prognostic factors was investigated. In this paper, various prognostic variables including a lymph node metastasis were analyzed in cervical cancer, endometrial cancer, and ovarian cancer.

Endometrial Neoplasms↗

[Current treatment of testicular cancers].

The treatment and prognosis of dysembryoma of the testis have been transformed by the dissection of retroperitoneal nodes and by combination chemotherapy as early as possible. Routine retroperitoneal node dissection followed by early and prolonged chemotherapy lead to a hope of cure in more than 75% of cases of dysembryoma of the testis. Similar early chemotherapy is effective and indicate for choriocarcinoma of the testis and retroperitoneal node dissection may be of value in tumours in which the chorial element is "minor".

Antineoplastic Agents↗

Reliability of diagnostic imaging after orchiectomy alone in follow-up of clinical stage I testicular carcinoma: excessive cost with potential risk.

From 1981 to 1984, 86 consecutive patients with previously untreated nonseminomatous testicular carcinoma were classified as clinical radiological stage I and treated with orchiectomy alone. The follow-up program included chest x-ray and lymphangiography (LAG) every month and abdominal computed tomography (CT) bimonthly. All patients were followed for 15 to 63 months after orchiectomy (median 32 mo.). Metastases developed in 23 patients (26.7%) and in 13/23 there was retroperitoneal lymphadenopathy. Time of relapse after orchiectomy ranged from 2 to 36 months (median 7 mo.) with a shorter interval for chest (4 mo.) compared with retroperitoneal metastases (7 mo.). Lung metastases were readily identified at an early stage (less than 2 cm) whereas more than one-third of retroperitoneal nodal metastases were greater than 5 cm at time of diagnosis. LAG detected metastases in 8/11 patients (72.7%), abdominal CT in 8/10 (80%), and both together (LAG and CT) 7/8 (87.5%). In clinical stage I nonseminomatous testicular carcinoma, the high incidence of concomitant but often asymptomatic regional and distant metastases and the relatively high cost and inconvenience of follow-up using abdominal CT imaging, LAG and chest x-ray suggest that orchiectomy is best combined with retroperitoneal node dissection at time of initial presentation to insure more accurate and safe staging of tumor dissemination.

Follow-Up Studies↗

The retroperitoneal, left flank approach to the supraceliac aorta for difficult and repeat aortic reconstructions.

Between 1986 and 1990, 11 patients with relative or absolute contraindications to standard infrarenal reconstructions underwent supraceliac aortofemoral bypass. The operation was performed through a left-flank incision extended into the eleventh intercostal space with retroperitoneal and extrapleural dissection. Indications included multiple failed infrarenal reconstructions in four patients, previous removal of infected aortofemoral bypass graft with failure of extra-anatomic bypass in five patients, prior para-aortic lymph node dissection and radiotherapy in one patient, and aortic aneurysmal disease proximal to the renal arteries in one patient. Bypass conduits included either a bifurcated Dacron graft or a tube graft to the left femoral artery with a femorofemoral cross-over graft; concomitant left renal artery reconstruction was performed in three patients. The mean supraceliac cross-clamp time was 24 minutes, and only one patient experienced transient postoperative acute tubular necrosis. There was no operative mortality. The graft limb patency was 95% after mean follow-up extending to 17 months (range: 5 months to 5 years). We conclude that the supraceliac aorta is a useful inflow source for aortofemoral reconstruction in difficult repeat cases. It can be approached easily without thoracotomy and avoids difficult infrarenal aortic dissection in a scarred field. The tunneling is easier than with descending thoracic aorta or ascending aorta inflow sources. In addition, this bypass is likely to be more durable than inflow reconstructions based on the axillary artery.

Aorta, Abdominal↗

[Hemorrhagic adrenocortical adenoma with myelolipoma: a case report].

We present a case of hemorrhagic adrenocortical adenoma with myelolipoma. A 66-year-old woman was admitted to our hospital for left retroperitoneal mass. Based on abdominal computed tomography, magnetic resonance imaging and blood tests, preoperative diagnosis was a sarcoma of renal capsule origin. En bloc resection of adrenal gland, tumor, and the kidney with lymph node dissection was performed. Histologically, the mass was diagnosed as hemorrhagic adrenocortical adenoma with myelolipomatous foci.

Adrenal Cortex Neoplasms↗

[Erection and ejaculation disorders following retroperitoneal lymphadenectomy in non-seminomatous testicular tumors].

From 38 patients, who had undergone retroperitoneal lymphadenectomy in the period between April 1980 and October 1983, reliable statements were obtained referring to pre- and postoperative erectile and ejaculatory abilities. The thoracolumbar outflow (Th12-L3) of the centers for emission and psychogenic erection is usually damaged in this procedure. About 12% of the radically lymph node dissected patients complained of permanent erectile disturbances; 85% of the radically lymph node dissected patients revealed ejaculatory disorders, 58% of them with a total loss of ejaculation. About 50% of them showed a considerable psychic involvement. In 12 patients a modified lymph node dissection procedure was performed with the intention to preserve ejaculatory capability. Nevertheless 6 (50%) of them revealed postoperative ejaculatory failure, 3 of them with a total loss of ejaculation. Thus our own experiences and a review of the literature indicate that this modified lymph node dissection often fails in its purpose and can not always be considered a valuable procedure for preservation of ejaculation. The administration of sympathomimetic drugs and/or imipramine is a promising approach in the treatment of ejaculatory failure.

Ejaculation↗

Vascular invasion as a prognosticator of metastatic disease in nonseminomatous germ cell tumors of the testis. Importance in "surveillance only" protocols.

Forty-five nonseminomatous germ cell carcinomas of the testis were evaluated retrospectively to define the biologic features associated with the occurrence of metastatic disease. A statistical analysis of several pertinent clinical and pathologic factors was performed. The factors evaluated included: duration of symptoms before diagnosis, serum level of alpha-fetoprotein, serum or urinary level of human chorionic gonadotropin, testicular weight, extent of local tumor (pathologic T stage), and vascular invasion at the primary site. In each case, metastases were documented by a retroperitoneal node dissection, other biopsies, or by chest films. In 29 tumors with vascular invasion, 25 patients were seen with metastatic disease. In 16 tumors without vascular invasion, 3 patients demonstrated metastasis. The presence or absence of vascular invasion was strongly correlated with concomitant lymph node involvement or subsequent appearance of other metastatic disease (chi-square = 17.19). Additionally, vascular invasion in bifactoral++ analysis with tumor size and pathologic T stage proved a significant prognosticator even in low-staged (chi-square = 8.48) and small tumors (chi-square = 8.13). The implications of these findings, both as an adjunct to the staging of nonseminomatous germ cell tumors and in the management of clinical Stage I lesions, are discussed.

Adolescent↗

Clinical stage II non-seminomatous germ cell testicular tumours. Results of management by primary chemotherapy.

Between 1977 and 1984, 92 patients with clinical Stage II non-seminomatous germ-cell testicular tumours were treated by primary chemotherapy, with surgery reserved for the excision of persisting masses. Eighty patients (87%) are alive and disease-free: 96% for Stages IIA and IIB and 74% for Stage IIC. Of 43 Stage IIA, B and C patients treated with bleomycin, etoposide and cisplatin (BEP), 40 (93%) are disease-free. For the whole group there was a significant difference between the outcome of treatment in patients with retroperitoneal masses greater than 8 cm in transverse diameter compared with those in whom masses were less than 8 cm, the disease-free rates being 54 and 97% respectively. Primary histology did not influence the outcome of treatment. However, whereas 51% of patients with teratocarcinoma had masses resected after chemotherapy, only 26% of embryonal carcinoma patients came to surgery. The results obtained in this series are as good as those obtained when lymph node dissection is employed as the initial form of treatment. The avoidance of surgery with preservation of ejaculatory function in 78% of Stage IIA and IIB patients argues in favour, of an initially non-surgical approach to management.

Antineoplastic Combined Chemotherapy Protocols↗

Retroperitoneal lymphadenectomy for testis tumor with nerve sparing for ejaculation.

The principal morbidity of retroperitoneal lymphadenectomy is the potential loss of ejaculation and, therefore, fertility owing to damage of the retroperitoneal sympathetic nerves that form the superior hypogastric plexus. We describe the results of our retroperitoneal lymphadenectomy when individual nerves from the sympathetic ganglia are identified and preserved while still performing a thorough bilateral retroperitoneal lymphadenectomy. The nerve-sparing procedure was technically feasible in 20 of 30 consecutive patients and it was only impractical with extensive gross disease. Of the 20 patients 18 (90 per cent) ejaculate, including 8 with bulky (5 cm. or more) residual retroperitoneal disease who underwent a successful nerve-sparing operation. All 12 patients (100 per cent) with nonbulky disease ejaculate. With short followup, no retroperitoneal recurrences have been detected. This technique is an alternative to limited dissection designed to spare nerves using boundaries based on the patterns of metastatic involvement.

Ejaculation↗

Clinicopathological study of pancreatic carcinoma with particular reference to the invasion of the extrapancreatic neural plexus.

A clinicopathological study of 44 ductal carcinomas of the head of the pancreas revealed 39 with retroperitoneal invasion, of which 27 showed extrapancreatic plexus involvements. The second portion of the plexus pancreaticus capitalis was the most frequent site of invasion. A statistically significant correlation was found between neural invasion in the pancreatic tissue and plexus invasion, but no clear correlation was found between plexus invasion and lymphatic invasion or tumor size. Even small-sized tumors (t1) showed plexus invasion. The cases with plexus invasion had a statistically higher incidence of lymph-node involvement around the superior mesenteric artery than those without plexus invasion. These results indicate that complete dissection of extrapancreatic plexus around the superior mesenteric artery, including lymph nodes and soft tissue, could prolong the survival of patients with ductal carcinoma of the pancreas, even in cases of small-sized carcinomas.

Humans↗

Indispensability of pelvic and paraaortic lymphadenectomy in endometrial cancers.

The purposes of this study were to analyze the relationship between retroperitoneal lymph node (RLN) metastasis and clinical and pathologic risk factors in endometrial cancers, and to clarify the correlation between RLN metastasis and survival of patients with the disease. This analysis included 63 patients with endometrial cancer who underwent simultaneous pelvic lymph node (PLN) and paraaortic lymph node (PAN) dissection between April 1988 and December 1995. Patients with stage Ia grade 1 and stage IV disease were excluded from this analysis. Both PLN and PAN metastases were found in 10.0% (4/40) of patients with stage I (FIGO, 1988) disease. Of 14 cases with PLN metastases, 8 (57.1%) had PAN metastases simultaneously, whereas 4 (8.2%) of 49 cases without PLN metastases had PAN metastases. There was no significant relationship between the sites or numbers of positive PLN and PAN metastases. Multivariate analysis revealed that poor grade and deep myometrial invasion had an independent relationship with PAN metastases, whereas vascular space invasion and cervical invasion were independently associated with PLN metastases. When divided into the groups of stage I-II and stage III, the prognosis of patients with RLN metastases was significantly poorer than that of patients without RLN metastases in each stage. Furthermore, survival of patients with PAN metastases was significantly worse compared with that of patients with only PLN metastases (44.4 and 80.0%, respectively, P < 0.05). These results reveal that PLN and PAN metastases occur frequently even in early-stage endometrial cancer, and that RLN metastases, especially PAN metastases, have a serious impact on patient survival. In conclusion, systemically simultaneous pelvic and paraaortic lymphadenectomy is essential for all the patients with endometrial cancer except those with stage Ia grade 1 and stage IV to provide prognostic information and select suitable postoperative treatment as well as to perform accurate FIGO staging, provided the condition of the patient permits.

Adult↗

Laparoscopic pelvic lymphadenectomy in the staging of early carcinoma of the cervix.

Laparoscopic pelvic lymphadenectomy was performed in 39 patients. An incision of the peritoneum between the round and infundibulo-pelvic ligament on each side gave access to the retroperitoneal space. Subsequently, laparoscopic surgery allowed precise dissection of external and internal iliac vessels, umbilical artery, and obturator nerve. The peritoneum was left open, and the lymph was drained into the peritoneal cavity. No lymphocele was observed. Three to 22 (mean, 8.7) nodes were removed, and there was no significant morbidity. Sensitivity and specificity were 100% in this preliminary experience. It is thus possible to remove the first-line regional lymph nodes of the cervix for pathologic examination. Because "skip" metastases are quite rare in early cervical carcinoma, the risk of missing a positive node is low. Brachytherapy alone, vaginal surgery, or, in microinvasive carcinoma, conization alone can be applied safely without the need of a staging laparotomy in cases with negative nodes.

Biopsy↗

[A case report treated in two-stage operations for lung cancer associated with arteriosclerosis obliterans (ASO)].

A case of lung cancer complicated with ASO treated surgically in two-stage procedures was reported. A 74-year-old male was admitted to our institution with the complaint of intermittent claudication. Chest X-rays showed shadows of a mass in the right upper lung field, and the tumor was suspected to be bronchogenic adenocarcinoma on the basis of findings of bronchoscopic brushing smears (class IIIb). Angiography revealed about 90% atherosclerotic eccentric stenosis in infra-renal abdominal aorta. Right upper lobectomy and lymph node dissection (R 2 a) was underwent through posterolateral thoracotomy. Pathological diagnosis showed the tumor was well-differentiated papillary adenocarcinoma and pathological TNM classification was T2N0M0. The secondary abdominal-bilateral common iliac bypass using artificial graft was performed through retroperitoneal approach 6 weeks after the first operation. Postoperative course was uneventful and the patient was discharged one month after the second operation. He is now leading normal life with both no relapse of cancer and no symptoms at 2 years and half after this two-stage operations.

Adenocarcinoma↗