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[Excision of colorectal cancers: what can be expected of lymph node excision?].

We report a series of 413 patients with colo-rectal adenocarcinoma. 328 had a curative resection and 277 of them had elective lymphadenectomy; 51 had no lymphadenectomy because of either age or poor general status. Operative morbidity and mortality were not increased by lymphadenectomy. Survival was related to the lymph node involvement: 70.6% 5 year survival in patients without lymph node metastases, 49.3% 5 year survival in patients with lymph node metastases (P less than 0.001). However lymphadenectomy did not affect the survival rate of the patients. We conclude that lymphadenectomy had no deleterious effect. However, its real benefit on long term survival must be evaluated in further prospective randomised studies.

Actuarial Analysis↗

[Laparoscopic retroperitoneal lymph node excision in clinical stage I non-seminomatous testicular cancer].

Modified retroperitoneal lymph node dissection for stage I testicular tumors has been described by Weissbach. For performing laparoscopic retroperitoneal lymphadenectomy within these boundaries, we have developed a two-step procedure. In the first step, a ventral approach is used. The colon is dissected free, then the spermatic vein is excised, and the borders of dissection are defined. Removal of retroaortic and retrocaval nodal tissue is technically not feasible from the ventral approach. Therefore, in the second step, a lateral approach is employed, which is the key to success since it allows for easy transection of the lumbar vessels. Thus complete lymph node dissection can be realized. Between August 1992 and June 1993 this procedure was performed in 11 patients. In 7 patients, the tumor was on the right side and in 4 on the left. Conversion to open surgery was necessary in two patients because of uncontrollable bleeding and a large metastasis, respectively. Microscopic metastases were detected in two other patients. No major complications occurred; no blood transfusions were required. So far, the results have been encouraging.

Adult↗

Incidental small lymphocytic lymphoma/chronic lymphocytic leukemia in pelvic lymph nodes excised at radical prostatectomy.

CONTEXT: Incidental non-Hodgkin lymphoma is often unrecognized at the time of radical prostatectomy in patients with prostate cancer because of nonspecific symptoms and an inconspicuous pathology. The early identification of lymphoma allows optimal long-term management and prevention of significant morbidity. OBJECTIVE: To show the subtlety of pathologic findings in cases of non-Hodgkin lymphoma in pelvic lymph nodes and the need for scrupulous attention to detail for diagnostic accuracy. DESIGN: Histologic and immunohistochemical profiles of 18 consecutive cases of small lymphocytic lymphoma (SLL) incidentally identified in pelvic lymph node dissections were reviewed and compared with 22 cases of benign pelvic lymph node dissections. RESULTS: Malignant nodes were grossly enlarged and averaged 3.2 cm in their greatest dimension. Histologically, 16 of the SLL cases were characterized by diffuse architectural effacement with obliterated sinuses and rare cortical follicles. Twelve of these cases showed evidence of pseudofollicles. Two cases showed an interfollicular growth pattern with occasional small pseudofollicles. In contrast, benign pelvic lymph nodes averaged 1.7 cm in their greatest dimension. Although most were architecturally distorted by fibrosis, all benign nodes were notable for patent sinuses. Immunohistochemistry was diagnostically helpful in several cases with equivocal morphology. All malignant cases had a B-cell phenotype with aberrant coexpression of T-cell-related antigens typical of SLL. CONCLUSION: Incidental low-grade non-Hodgkin lymphoma identified at radical prostatectomy is often overlooked by both the urologist and the pathologist. Although malignant pelvic lymph node dissections frequently lack overt manifestations of lymphoma, attention to subtle morphologic features coupled with lymph node size and immunohistochemical findings should permit diagnostic accuracy.

Aged↗

[On lymph node excision in malignant neoplasms of the splenocolic fold].

The latest findings on lymphatic draining of the splenocolic flexure are recalled in a discussion of lymphadenectomy in the surgical treatment of cancer of the left corner of the colon. The main features of the lymphatic down flow ways of this colon segment justify extended exeresis operations as described by Madden and Welti: they also mention colon resection, removal in one block of the spleen and the caudal corporal portion of the pancreas with the lymph node stations of the pancreatico-lienal group invaded by cancer. Some observations are made regarding experience of twenty-five years at various Hospital Surgeries and twenty operated patients: stress is laid on the importance of intraoperative biopsy of the pancreatico-lineal lymph nodes for the purposes of correct staging and for programming extended surgical exeresis.

Colon↗

[Results of elective lymph node excision in melanoma of the trunk].

In our department, between 1979 and 1994, 254 patients, thereof 171 male, 83 female with the average age of 48.2 years underwent surgery because of stage 1 (T2) to stage 3 melanoma that was located on the trunk. Our retrospective analysis was based on those 211 patients who had been followed up by the department of dermatology in our medical center. It was the aim of our study-apart from determining the long-term-prognosis-to find out the number of patients in whom a curative resection could be only achieved by elective lymph node dissection. The 5-year survival rate amounted to 79% for all patients. For patients suffering from stage 1-disease (T2) it was 93%, for those with stage 2-disease 89%, and in case of stage 3-disease 49% respectively. After ELND had been performed, no lymph node metastases were found in patients (0/22) suffering from a T2-tumor. In case of T3-tumors, in 13% (11/82) and in case of T4-tumors in 30% (13/43) lymph node metastases were found. However, only 5 out of 11 patients, with the established diagnosis of a T3-tumor in whom positive lymph-nodes had been found by ELND, and merely 6 out of the 13 patients with a T4-tumor, are still alive after a mean follow-up period of 74 months. We conclude that ELND is not indicated in patients with T2-melanoma. In case of T3- and T4-melanoma, some doubts exist whether patients really benefit from this surgical procedure. Randomized prospective studies are necessary to clarify the importance of elective lymph node dissection.

Adolescent↗

[Laparoscopic para-aortic and pelvic lymph node excision--initial experiences and development of a technique].

It was the aim of this study to establish and analyze the laparoscopic technique of para-aortic and pelvic lymphadenectomy. During a one year period (from August 1994 till July 1995) 42 patients underwent pelvic and para-aortic laparoscopic lymphadenectomy. In 29 cases cervical cancer, in 11 cases endometrial cancer and in 2 cases tumors of low malignant potential of the ovary were the indication for lymphadenectomy which was combined with radical vaginal hysterectomy in 19 patients or simple vaginal hysterectomy in 13 patients. During the observation period the mean operating time for para-aortic and pelvic lymphadenectomy decreased and the efficiency of the lymphadenectomy increased significantly: the mean operating time for the first 10 para-aortic lymphadenectomies was 52 minutes and for the pelvic lymphadenectomies 141 minutes, respectively. For the last 10 procedures the para-aortic part took 35 minutes and the pelvic part 110 minutes. Whereas at the beginning of the study a mean of 25 lymph nodes were removed, a mean of 36 lymph nodes were sampled during the last 10 procedures. In 3 patients operative injuries to major vessels were encountered of which two were followed by laparotomy. In 3 other patients laparotomy due to postoperative hemorrhage was necessary. These 6 complications occurred during the first half of the study and were not encountered during the following operations by changing from monopolar to bipolar coagulation and by modifying the regimen for perioperative thrombosis prophylaxis. In the first half of the study in 9 women blood transfusions were necessary and in the second half only 4 patients had to be transfused. In the first 10 patients the mean intraoperative blood loss was 1300 cc, in the last 10 patients 300 cc. After a short learning curve laparoscopic para-aortic and pelvic lymphadenectomy is a safe and effective technique for staging cervical, endometrial, and early ovarian cancers. Though this technique is no standard procedure results of this pilot study warrant prospective studies comparing this technique with conventional procedures.

Adolescent↗

[Radical D2,D3 lymph node excision of stomach carcinoma in situs inversus totalis and malrotation of the colon].

The combination of Situs inversus totalis (SIT) with incomplete rotation of the colon is an extremely rare anomaly and especially of interest when presented with advanced gastric cancer. The routine en-bloc resection of gastric cancer with D2,D3 lymphadenectomy according to the recommendations of the Japanese Research Society for Gastric Cancer [5] can, as in this case, present tactical operative problems, due to the mirror-image anatomy and potential vessel anomalies, which might complicate the operative procedure. The preoperative diagnosis of SIT is not only essential to allow an adequate operative approach but furthermore to prevent vessel injury.

Adenocarcinoma↗

[Delayed retroperitoneal lymph node excision in treatment of advanced non-seminomatous germinal cell tumors. I. Intraoperative findings in marker converted tumor].

Retroperitoneal lymphadenectomy was performed in 462 patients with testicular cancer. A total of 142 patients with advanced non-seminomatous germ cell tumours underwent retroperitoneal lymphadenectomy following cisplatin-based polychemotherapy. After inductive chemotherapy all of the patients described (108/142) showed seroconversion of tumour markers. Histology following RLA revealed vital tumour in 41% and teratoma in 12%. It was not possible to distinguish preoperatively between non-malignant residual tissue and vital tumour. In addition, sonography, computed tomography, and the tumour marker results did not correlate significantly with the intraoperative histopathological findings. Although histopathological confirmed complete remission was achieved in 47% of the patients with chemotherapy alone, subsequent retroperitoneal lymphadenectomy remains mandatory in cases with residual retroperitoneal lesions and pathological partial remission.

Adult↗

[Preventive lymph node excision in the treatment concept of melanoma of the extremities].

Since 1979, our treatment protocol for extremity melanoma includes regional lymph node dissection, wide tumor excision and hyperthermic limb perfusion. We report on the results of a follow-up of the 451 patients treated in the first decade. 58.5% of patients presented with a primary tumor, additional 7.4% with a local recurrence or satellite metastases without evidence for further tumor extension. Regional lymph node metastases were not found below a tumor thickness of 1.5 mm; then micrometastases occurred in 5-10%, macrometastases at over 1.9 mm in up to over 15% of tissue specimens. 5-year survival was 90% if nodes were negative, 66% if there were micrometastases and 30% for further lymph node metastases. We conclude that patients may benefit from prophylactic dissection of regional lymph nodes if careful selection according to pathohistological and clinical criteria is performed.

Chemotherapy, Adjuvant↗

Lymph node grading for staging of mycosis fungoides may benefit from examination of multiple excised lymph nodes.

BACKGROUND: Lymph node (LN) histopathologic class has been shown to be a significant determinant of survival in patients with mycosis fungoides. Often, histopathologic evaluation of just 1 node is used in staging patients with cutaneous T-cell lymphoma. OBJECTIVE: We examined whether sampling multiple nodes alters the staging and prognostic group placement of patients with mycosis fungoides as compared with sampling just 1 node. METHODS: Multiple LNs were obtained from a single, local region for histopathologic evaluation and grading in 8 patients with mycosis fungoides. RESULTS: Differences in histopathologic grading using multiple nodes were found in 5 of 8 patients. There was a potential upstaging of the assigned disease stage, compared with the stage that might have been assigned had just 1 node been sampled, in 3 patients. The differences in LN grading also potentially led to differences in prognostic group placement in 4 patients. CONCLUSION: Determining histopathologic grades from multiple LNs may allow a more accurate stage and prognosis to be assigned to patients.

Adult↗

[Modified retroperitoneal lymph node excision in testicular tumors. Anatomy, surgical technique and results].

Between January 1988 and June 1992, 56 patients suffering from malignant testicular tumors underwent nerve-preserving retroperitoneal lymphadenectomy at the University Hospital in Innsbruck. The tumors were staged according to the nomenclature recommended by the Workshop for Staging and Treatment of Testicular Cancer (Lugano 1979). According to this nomenclature 23 patients had stage I and 33 patients stage II. Thirty-nine patients presented with malignant teratoma, 3 with seminoma and 14 with teratoma and seminoma. The patients with stage I tumors were treated after orchiectomy with nerve-preserving retroperitoneal lymphadenectomy according to the dissection fields of Weissbach et al. In cases of nodal involvement in the retroperitoneum (stage IIa and IIb) a retroperitoneal modified lymphadenectomy according to the margins of Colleselli et al was performed. Patients with stage IIc tumors were treated with three cycles of polychemotherapy. Subsequently, the residual tumor was removed and, if possible, a nerve-sparing lymphadenectomy was performed. Since the nerve-preserving technique was modified in accordance with the tumor stage, antegrade ejaculation could be preserved in 47 of the 56 patients. In 22 patients exocrine testicular function was assessed by sperm analysis. The findings for the patients with stage I and IIa were considerable. The patients who had undergone induction chemotherapy for stage IIb and IIc had poor exocrine testicular function. The follow-up time was 29 months. At follow-up none of the patients presented with recurrent retroperitoneal tumor. Only one patient was found to have tumor progression (solitary pulmonary metastasis 1.7%). These results show that nerve-preserving retroperitoneal lymphadenectomy is the treatment of choice in stage I non-seminomatous testicular tumors.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

[Skin incisions in inguinal lymph-node excision].

Wound complications in the postoperative period of the inguinal lymph node dissection are frequent events. The main factor in wound complications is due to dissection of the vascular architecture. In most of the cases the impaired wound healing occurs distal to Poupart's ligament. Suggestion for its prevention is the use of an oblique, subinquinal, wide spindle-S-shaped skin excision crossing over Scarpa's triangle with an extension to the anterior superior iliac spine from its lateral and a vertical prolongation onto the thigh from its medial end. The wide spindle-S-shaped excision minimizes the later devascularisation of skin flaps. The anatomic outline of the inguinal lymphatic basin to be removed can easily be reached by the extend of these two incision lines. Besides an undisturbed healing the technique offers two further possibilities. If malignant skin tumors are in anatomical positions which lend themselves to incontinuity dissection, removing primary tumor, intervening lymphatics and regional lymph nodes en bloc can be combined with the incision lines. Furthermore the excised groin skin can be used for a free flap to cover the excision wound of the primary tumor. The method is described in ten cases.

Adult↗