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Özgül E. Evaluating incidence and clinical importance of renal vein anomalies with routine abdominal multidetector computed tomography. Abdom Radiol (NY) 2021; 46:1034-1040. [PMID: 32914351 DOI: 10.1007/s00261-020-02716-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/08/2020] [Accepted: 08/21/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE Renal vein anomalies are usually asymptomatic embryological developmental disorders. If unidentified, they can lead to significant morbidity during surgical explorations. This study aims to evaluate the type, frequency, clinical importance of renal vein anomalies in patients scanned with Multidetector Computed Tomography (MDCT). It was also investigated whether renal vein anomalies are associated with malignancies or their types. METHODS Abdominal MDCT images of 8517 patients were examined retrospectively. Renal vein anomaly types, gender, age, and symptoms were recorded. Renal vein anomalies were divided into three subgroups as retroaortic left renal vein (RLRV), circumaortic left renal vein (CLRV), and double right renal vein (DRRV). The presence of malignancy and their types in patients with renal vein anomalies were noted. Malignancies were divided into five subgroups as lung, gastrointestinal system (GIS), genitourinary system, breast, and others. RESULTS 156 patients had renal vein anomaly (1.8%). The prevalence of RLRV, CLRV, and DRRV were 1.1%, 0.3%, and 0.2%, respectively. Renal vein anomalies were more frequent in females. Malignancy was present in 89 (57.1%) out of 156 renal vein anomaly patients. Among these 89 patients, RLRV was found in 52 (58.4%), CLRV in 22 (24.7%), and DRRV in 15 (16.8%) patients. The presence of malignancy was present in more than half of the renal vein anomaly patients but there was no significant correlation (p = 0.1). This high ratio is probably due to the high number of cancer patients undergoing CT scan in our radiology department. CONCLUSIONS Renal vein anomalies are rare conditions, however, coexistence of renal vein anomalies and malignancies is not. An awareness of this entity before retroperitoneal surgeries is very important in order to avoid complications such as hemorrhage, transfusion, death, or conversion to open surgery.
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Kostov S, Kornovski Y, Slavchev S, Ivanova Y, Dzhenkov D, Dimitrov N, Yordanov A. Pelvic Lymphadenectomy in Gynecologic Oncology-Significance of Anatomical Variations. Diagnostics (Basel) 2021; 11:diagnostics11010089. [PMID: 33430363 PMCID: PMC7825766 DOI: 10.3390/diagnostics11010089] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/03/2021] [Accepted: 01/05/2021] [Indexed: 01/15/2023] Open
Abstract
Pelvic lymphadenectomy is a common surgical procedure in gynecologic oncology. Pelvic lymph node dissection is performed for all types of gynecological malignancies to evaluate the extent of a disease and facilitate further treatment planning. Most studies examine the lymphatic spread, the prognostic, and therapeutic significance of the lymph nodes. However, there are very few studies describing the possible surgical approaches and the anatomical variations. Moreover, a correlation between anatomical variations and lymphadenectomy in the pelvic region has never been discussed in medical literature. The present article aims to expand the limited knowledge of the anatomical variations in the pelvis. Anatomical variations of the ureters, pelvic vessels, and nerves and their significance to pelvic lymphadenectomy are summarized, explained, and illustrated. Surgeons should be familiar with pelvic anatomy and its variations to safely perform a pelvic lymphadenectomy. Learning the proper lymphadenectomy technique relating to anatomical landmarks and variations may decrease morbidity and mortality. Furthermore, accurate description and analysis of the majority of pelvic anatomical variations may impact not only gynecological surgery, but also spinal surgery, urology, and orthopedics.
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Affiliation(s)
- Stoyan Kostov
- Department of Gynecology, Medical University Varna “Prof. Dr. Paraskev Stoyanov”, 9002 Varna, Bulgaria; (S.K.); (Y.K.); (S.S.); (Y.I.)
| | - Yavor Kornovski
- Department of Gynecology, Medical University Varna “Prof. Dr. Paraskev Stoyanov”, 9002 Varna, Bulgaria; (S.K.); (Y.K.); (S.S.); (Y.I.)
| | - Stanislav Slavchev
- Department of Gynecology, Medical University Varna “Prof. Dr. Paraskev Stoyanov”, 9002 Varna, Bulgaria; (S.K.); (Y.K.); (S.S.); (Y.I.)
| | - Yonka Ivanova
- Department of Gynecology, Medical University Varna “Prof. Dr. Paraskev Stoyanov”, 9002 Varna, Bulgaria; (S.K.); (Y.K.); (S.S.); (Y.I.)
| | - Deyan Dzhenkov
- Department of General and Clinical Pathology, Forensic Medicine and Deontology, Division of General and Clinical Pathology, Faculty of Medicine, Medical University Varna “Prof. Dr. Paraskev Stoyanov”, 9002 Varna, Bulgaria;
| | - Nikolay Dimitrov
- Department of Anatomy, Faculty of Medicine, Trakia University, 6000 Stara Zagora, Bulgaria;
| | - Angel Yordanov
- Department of Gynecologic Oncology, Medical University Pleven, 5800 Pleven, Bulgaria
- Correspondence:
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Hostiuc S, Minoiu C, Negoi I, Rusu MC, Hostiuc M. Duplication and transposition of inferior vena cava: A meta-analysis of prevalence. J Vasc Surg Venous Lymphat Disord 2019; 7:742-755. [DOI: 10.1016/j.jvsv.2019.01.063] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 01/27/2019] [Indexed: 12/26/2022]
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Anatomical variants of renal veins: A meta-analysis of prevalence. Sci Rep 2019; 9:10802. [PMID: 31346244 PMCID: PMC6658480 DOI: 10.1038/s41598-019-47280-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 07/15/2019] [Indexed: 11/22/2022] Open
Abstract
The main aim of this article is to establish the actual prevalence of renal vein variations (circumaortic renal vein, retroaortic renal vein, double renal vein), and to increase awareness about them. To this purpose, we have performed a meta-analysis of prevalence, using the MetaXL package, We included 105 articles in the final analysis of prevalence, of which 88 contained data about retroaortic renal vein, 84 – about circumaortic renal vein, and 51 - about multiple renal veins. The overall prevalence for retroaortic renal vein was 3% (CI:2.4–3.6%), for circumaortic renal vein − 3.5% (CI:2.8–4.4%), and for multiple renal veins - 16.7% (14.3–19.2%), much higher on the right 16.6 (14.2–19.1%) than on the left side 2.1 (1.3–3.2%). The results were relatively homogenous between studies, with only a minor publication bias overall.
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Weinberger V, Fischerova D, Semeradova I, Slama J, Cibula D, Zikan M. Ultrasound characteristics of a symptomatic and asymptomatic lymphocele after pelvic and/or paraaortic lymphadenectomy. Taiwan J Obstet Gynecol 2019; 58:266-272. [PMID: 30910151 DOI: 10.1016/j.tjog.2019.01.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2018] [Indexed: 10/27/2022] Open
Abstract
OBJECTIVE To describe the sonographic characteristics of a lymphocele after pelvic and/or paraaortic lymphadenectomy for gynecological malignancy, analyze and identify ultrasound characteristics related to the symptomatic and asymptomatic lymphoceles. MATERIALS AND METHODS This is a retrospective analysis of ultrasound examination data collected consecutively in patients after pelvic and/or paraaortic lymphadenectomy in one institution. We recorded the number of lymphoceles, localization, size; ultrasound morphology following International Ovarian Tumor Analysis group classification and symptoms. RESULTS We described and analyzed 227 lymphoceles (150 asymptomatic and 77 symptomatic) in 161 patients. The asymptomatic lymphocele is typically a thick-walled cystic lesion without vascularization, round and unilocular with anechoic or ground-glass content. The symptomatic lymphocele is typically an oval, or ovoid, unilocular lesion with low-level or anechoic content (ground glass content is unlikely to be present, p < 0.001) and the presence of debris and septations. The lymphocele size (p = 0.001), number of lymphoceles (>1) (p = 0.005), septa (p = 0.002), and debris (p < 0.001) were independent ultrasound features correlating to symptoms development. More than one lymphocele (p = 0.047), septations (p = 0.007) and presence of debris (p < 0.001) were independent ultrasound features correlated to infection. CONCLUSION Ultrasound features of symptomatic and asymptomatic lymphocele differ. The clues for lymphocele differential diagnosis are the history of lymphadenectomy and the finding cystic lesion with typically ultrasound features of lymphocele, adjacent to great pelvic vessels. Unique ultrasound features of lymphocele may help to distinguish from tumor relapse, hematoma, abscess, seroma or urinoma.
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Affiliation(s)
- Vit Weinberger
- Department of Obstetrics and Gynecology, Masaryk University, Faculty of Medicine, Jihlavska 20, 625 00, Brno, Czech Republic
| | - Daniela Fischerova
- Gynecological Oncology Center, Department of Obstetrics and Gynecology, Charles University - First Faculty of Medicine and General University Hospital, Apolinarska 18, 128 00 Prague, Czech Republic
| | - Ivana Semeradova
- Gynecological Oncology Center, Department of Obstetrics and Gynecology, Charles University - First Faculty of Medicine and General University Hospital, Apolinarska 18, 128 00 Prague, Czech Republic
| | - Jiri Slama
- Gynecological Oncology Center, Department of Obstetrics and Gynecology, Charles University - First Faculty of Medicine and General University Hospital, Apolinarska 18, 128 00 Prague, Czech Republic
| | - David Cibula
- Gynecological Oncology Center, Department of Obstetrics and Gynecology, Charles University - First Faculty of Medicine and General University Hospital, Apolinarska 18, 128 00 Prague, Czech Republic
| | - Michal Zikan
- Gynecological Oncology Center, Department of Obstetrics and Gynecology, Charles University - First Faculty of Medicine and General University Hospital, Apolinarska 18, 128 00 Prague, Czech Republic; Department of Obstetrics and Gynecology, Charles University - First Faculty of Medicine and Na Bulovce Hospital, Budinova 67/2, 181 00 Prague, Czech Republic.
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Weinberger V, Cibula D, Zikan M. Lymphocele: prevalence and management in gynecological malignancies. Expert Rev Anticancer Ther 2014; 14:307-17. [DOI: 10.1586/14737140.2014.866043] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Tulunay G, Ureyen I, Karalok A, Turan T, Boran N. A ptotic kidney with multiple arteries, one from a common renal artery stem. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2012. [DOI: 10.1016/s2305-0500(13)60101-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Gyimadu A, Salman MC, Karcaaltincaba M, Yuce K. Retroperitoneal vascular aberrations increase the risk of vascular injury during lymphadenectomy in gynecologic cancers. Arch Gynecol Obstet 2012; 286:449-55. [PMID: 22407158 DOI: 10.1007/s00404-012-2285-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2011] [Accepted: 02/27/2012] [Indexed: 11/25/2022]
Abstract
PURPOSE To investigate the frequency of aberrations of retroperitoneal great vessels in patients with gynecologic cancers who were scheduled for pelvic and paraaortic lymphadenectomy, and to document the vascular complications which occurred during lymphadenectomy as well as the relationship of these vascular complications with vascular aberrations. METHODS Patients with gynecologic cancers underwent a routine preoperative abdominal multi-detector computer tomography, and an intraoperative search for aberrations of the great vessels in the retroperitoneal region was undertaken. Intraoperative vascular complications were recorded and their relations to vascular aberrations were analyzed. RESULTS The rate of vascular aberrations detected preoperatively by multi-detector computed tomography was 24.3 %. Vascular injuries occurred in six patients (16.2 %) during lymphadenectomy. Rate of intraoperative vascular injuries was significantly higher in patients who had vascular aberrations of retroperitoneal great vessels (44.4 vs. 7.1 %, p = 0.022). CONCLUSIONS Aberrations of retroperitoneal vessels are not uncommon and may increase the risk of vascular complications during lymphadenectomy. The risk of these complications may be decreased if aberrations are detected preoperatively.
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Affiliation(s)
- Adam Gyimadu
- Department of Obstetrics and Gynecology, Faculty of Medicine, Hacettepe University, Sihhiye 06100, Ankara. Turkey
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Patrizi L, Corrado G, Saltari M, Piccione E, Vizza E. Congenital renal malrotation in ovarian cancer surgery: A case report. GYNECOLOGIC ONCOLOGY CASE REPORTS 2012; 4:41-3. [PMID: 24371669 DOI: 10.1016/j.gynor.2012.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Accepted: 12/03/2012] [Indexed: 10/27/2022]
Abstract
► We consider a case of laparoscopic aortic lymphadenectomy for an early ovarian cancer including a comprehensive surgical staging. ► The patient was found to have a congenital anatomic abnormality: a right renal malrotation with an accessory renal artery. ► We used a preoperative CT angiography study to diagnose such anatomical variations and to adequate the proper surgical technique.
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Affiliation(s)
- Lodovico Patrizi
- Department of Surgery, Section of Gynecology and Obstetrics, Tor Vergata University of Rome, Rome, Italy
| | - Giacomo Corrado
- Gynecologic Oncology Unit, Catholic University, Campobasso, Italy
| | - Maria Saltari
- Department of Surgery, Section of Gynecology and Obstetrics, Tor Vergata University of Rome, Rome, Italy
| | - Emilio Piccione
- Department of Surgery, Section of Gynecology and Obstetrics, Tor Vergata University of Rome, Rome, Italy
| | - Enrico Vizza
- Gynecologic Oncology Unit, National Cancer Institute "Regina Elena", Rome, Italy
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Do routine preoperative imaging techniques facilitate the operation in endometrial cancer? Arch Gynecol Obstet 2008; 280:211-5. [DOI: 10.1007/s00404-008-0893-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2008] [Accepted: 12/09/2008] [Indexed: 10/21/2022]
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Salet-Lizée D, Alsary S. [Not Available]. ACTA ACUST UNITED AC 2008; 145S4:12S45-9. [PMID: 22793985 DOI: 10.1016/s0021-7697(08)74722-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
D. Salet-Lizée, S. Alsary Ovarian cancer often invades regional lymph nodes but the patterns of involvement are variable; spread to para-aortic and pelvic lymph nodes can be unilateral, contralateral or bilateral. For staging purposes, complete lymph node dissection seems more reasonable and effective than simple lymph node sampling. In early stage disease, lymph node dissection has both diagnostic and therapeutic value allowing identification and optimal management of Stage IIIc tumors with retroperitoneal spread; it may also have direct therapeutic value by removing retroperitoneal micrometastatic disease including cell clones which may be resistant to chemotherapy. Therefore, complete lymph node dissection is recommended in early-stage disease with the exception of stage I mucinous ovarian cancer. In advanced-stage disease, lymph node involvement is an additional factor of poor prognosis correlating with increased tumor aggressivity. Optimal debulking resection of all visible tumor offers the best chance for a prolonged disease-free interval if patient condition permits and morbidity can be limited. Survival benefit for complete lymph node dissection has not been evaluated by randomized controlled trials; but several non-randomized studies and two long-term prospective trials have shown objective improvement in disease-free survival and improved quality of life when debulking surgery leaves no residual tumor larger than 1 cm.
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Salet-Lizée D, Alsary S. [Not Available]. ACTA ACUST UNITED AC 2008; 145:12S45-9. [PMID: 22794072 DOI: 10.1016/s0021-7697(08)45009-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
D. Salet-Lizée, S. Alsary Ovarian cancer often invades regional lymph nodes but the patterns of involvement are variable; spread to para-aortic and pelvic lymph nodes can be unilateral, contralateral or bilateral. For staging purposes, complete lymph node dissection seems more reasonable and effective than simple lymph node sampling. In early stage disease, lymph node dissection has both diagnostic and therapeutic value allowing identification and optimal management of Stage IIIc tumors with retroperitoneal spread; it may also have direct therapeutic value by removing retroperitoneal micrometastatic disease including cell clones which may be resistant to chemotherapy. Therefore, complete lymph node dissection is recommended in early-stage disease with the exception of stage I mucinous ovarian cancer. In advanced-stage disease, lymph node involvement is an additional factor of poor prognosis correlating with increased tumor aggressivity. Optimal debulking resection of all visible tumor offers the best chance for a prolonged disease-free interval if patient condition permits and morbidity can be limited. Survival benefit for complete lymph node dissection has not been evaluated by randomized controlled trials; but several non-randomized studies and two long-term prospective trials have shown objective improvement in disease-free survival and improved quality of life when debulking surgery leaves no residual tumor larger than 1 cm.
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Bader AA, Tamussino KF, Winter R. Ectopic (pelvic) kidney mimicking bulky lymph nodes at pelvic lymphadenectomy. Gynecol Oncol 2005; 96:873-5. [PMID: 15721442 DOI: 10.1016/j.ygyno.2004.11.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2004] [Indexed: 11/25/2022]
Abstract
BACKGROUND Ectopic (pelvic) kidney is the most common congenital renal anomaly with an incidence of 1 in 500 to 1 in 2000. A pelvic kidney can be encountered at pelvic or paraaortic lymphadenectomy. CASE REPORTS In two patients undergoing pelvic lymphadenectomy, lobulated tumors near the pelvic brim were initially interpreted as bulky lymph node conglomerates. Further dissection showed the ureter to originate from the masses, leading to a diagnosis of pelvic kidney. CONCLUSION Pelvic kidneys mistaken for bulky lymph nodes are a potential intraoperative pitfall in patients with gynecologic malignancies. Keys to recognition include an index of suspicion, identifying the course of the ureter and origin of the renal vessels, and confirming absence of a kidney at the normal location.
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Affiliation(s)
- Arnim A Bader
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, A-8036 Graz, Austria.
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Klemm P, Fröber R, Köhler C, Schneider A. Vascular anomalies in the paraaortic region diagnosed by laparoscopy in patients with gynaecologic malignancies. Gynecol Oncol 2005; 96:278-82. [PMID: 15661208 DOI: 10.1016/j.ygyno.2004.09.056] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2004] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Paraaortic infrarenal lymphadenectomy is indicated in patients with gynecologic tumors of high metastasising potential and can be done successfully by laparoscopic approach. Vascular anomalies in this region are incidental findings during these approaches and may increase the surgical complication rate. In this study, we have documented the frequency and pattern of the vascular anomalies in paraaortic region intraoperatively and on cadavers in an attempt to increase surgical safety. METHODS A total of 86 consecutive patients underwent laparoscopic infrarenal paraaortic lymphadenectomy by a standardised technique between 1st of January 2002 and 1st of March 2004. Of the 86, 52 were primary cervical, 5 recurrent cervical, 14 endometrial, 14 early ovarian and 1 vulvar tumor with positive groin and pelvic lymph nodes. In the same time, anatomical dissections of the paraaortic region on 18 cadavers were performed at the Institute of Anatomy. RESULTS Arterial or venous abnormalities were identified in 30.2% (26/86) of patients by laparoscopy. The most frequent anomalies were related to atypical renal arteries (pole arteries-9 patients) and an abnormal course of lumbar veins directly draining in the left renal vein (15 patients). In one of the patients, the complete left renal vein went retroaortic to the inferior vena cava. In cadaveric dissections, vascular anomalies were noted in 44.4% (8/18) which included variations in renal and lumbar vessels and ovarian vessels. Duplicated inferior vena cava was the least common anomaly and was detected in only one case. CONCLUSION During laparoscopic paraaortic inframesenteric and infrarenal lymphadenectomy, care must be taken because of possible abnormalities in arterially and venous system to avoid massive hemorrhage, transfusion and conversion to laparotomy.
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Affiliation(s)
- Petra Klemm
- Department of Gynecology, Friedrich Schiller University, Bachstrasse 18, 07740 Jena, Germany
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Abstract
The exact role of lymphadenectomy in the management of ovarian cancer has been the object of controversy during recent years. The International Federation of Obstetrics and Gynecology has indicated that pelvic and para-aortic lymph node sampling is an integral part of the staging system of ovarian cancer. On the other hand the advantage of systematic sampling, resection of bulky nodes only, or no lymphadenectomy in terms of recurrence rate and survival of ovarian cancer patients has not yet been clearly defined. Thanks to the analysis of clinical studies on systematic lymphadenectomy, detailed anatomical studies to assess the location of lymph nodes and lymphatic spread have been recently reported. In this chapter we report the available data on clinical anatomy and pathological assessment of lymph node and lymphatic spread of ovarian cancer metastasis; we also review the clinical data on correlation of lymph node metastasis and disease status. Surgical techniques developed during years of dedication to this procedure are also described. Finally, we review and discuss the actual benefits of lymph node dissection in patients with ovarian cancer, analysing previously reported and ongoing trials.
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Shukunami KI, Kotsuji F. Implication of a reflected image illustration for pelvic lymphadenectomy on uterine cervical cancer with situs inversus totalis. Gynecol Oncol 2002; 84:538. [PMID: 11855896 DOI: 10.1006/gyno.2001.6544] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abstract
Pelvic and aortic lymphadenectomy for gynecologic malignancies has changed from a random "picking" of some pelvic and aortic lymph nodes to a well-established technique based on adequate knowledge of the patterns of spread of the primary tumor. The identification of the node groups to remove, the number of nodes to count, and the border of dissection in the different clinical situations make pelvic and aortic lymphadenectomy a reproducible surgical intervention. The large experience accumulated over the years has greatly improved the technique and perioperative and complication management. The improved knowledge of the natural history of gynecologic tumors has refined the indications for lymph node dissection. Today, pelvic and aortic lymphadenectomy is primarily a staging procedure. The therapeutic value of lymphadenectomy is recognized in the surgical treatment of cervical cancer, but it is still under evaluation in ovarian and endometrial tumors.
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Possover M, Plaul K, Krause N, Schneider A. Left-sided laparoscopic para-aortic lymphadenectomy: anatomy of the ventral tributaries of the infrarenal vena cava. Am J Obstet Gynecol 1998; 179:1295-7. [PMID: 9822519 DOI: 10.1016/s0002-9378(98)70150-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE We evaluated the anatomy of the infrarenal portion of the human inferior vena cava and their ventral tributaries by video laparoscopy. STUDY DESIGN A total of 112 patients underwent laparoscopic para-aortic lymphadenectomy for gynecologic malignancies. All procedures were videotaped. The number and anatomic distribution of the infrarenal tributaries of the anterior part of the inferior vena cava was evaluated retrospectively from videotapes. The inferior vena cava was divided into 3 levels: the area of the bifurcation of the vena cava (level 1), the area between the bifurcation and the inferior mesenteric artery (level 2), and the area between the inferior mesenteric artery and the right ovarian vein (level 3). RESULTS Tributaries were found in level 1 in 65 (58%) patients, in level 2 in 22 (19.6%) patients, and in level 3 in 1 (0.9%) patient; in 24 (21.5%) patients no tributaries were found. A total of 237 tributaries was counted: 82.3% (195 of 237) were located at level 1, 17.3% (41 of 237) at level 2, and 0.4% (1 of 237) at level 3. Patients with tributaries had a mean of 3 tributaries in level 1, a mean of 1.7 tributaries in level 2, and 1 patient had 1 tributary in level 3. CONCLUSIONS The ventral tributaries of the inferior vena cava show a specific distribution pattern. The knowledge of these anatomic landmarks can be important for laparoscopic surgeons to avoid accidental injury.
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Affiliation(s)
- M Possover
- Department of Gynecology, Friedrich-Schiller University, Jena, Germany
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