Marsupial vena cava mimicking lymph node enlargement on tomography

Filho, Antonio José Souza Reis; Rocha, Marcelo Assis; Lemos, George Ramos; Yamauchi, Fernando Ide; Tachibana, Adriano; Baroni, Ronaldo Hueb

doi:10.1590/s1679-45082018ai4394

Cited by 3 publications

(5 citation statements)

References 5 publications

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“…Rocha et al stated that 17 cases of MIVC have been found in the medical literature and the majority of them were observed during surgeries or autopsies. Therefore, approximately 20 cases have been described to date [96][97][98]. However, Rocha et al concluded that such a variation could be not as uncommon as previously though, as the four cases which authors described were observed by the same radiologists [98].…”

Section: Marsupial Inferior Vena Cavamentioning

confidence: 89%

“…Marsupial inferior vena cava (MIVC), also known as the preaortic iliac confluence, is a congenital variation, where the IVC or the left CIV are located before the bifurcation of the AA or the right CIA. Filho et al reported MIVC mimicking lymph node enlargement on CT [96]. The variation is caused by ventral portion persistence of the embryologic circumaortic venous ring and dorsal portion regression of the ring [97].…”

Section: Marsupial Inferior Vena Cavamentioning

confidence: 99%

“…Vessel variations in the paraaortic region and their clinical significance in Gynecologic Oncology are summarized in Table 1 [81][82][83][84][85][86][87][88][89][90][91][92][93][94][95][96][97][98][100][101][102][103][104][105][106]110].…”

Section: Preventing Iatrogenic Injury Of Variant Vesselsmentioning

confidence: 99%

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Paraaortic Lymphadenectomy in Gynecologic Oncology—Significance of Vessels Variations

Kostov

Selçuk

Yordanov

et al. 2022

JCM

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Lymphadenectomy has been an essential part of the surgical treatment in surgical oncology, as the lymphatic channels and nodes are the main dissemination pathway for most of the gynecological cancers. Pelvic and paraaortic lymphadenectomy are frequent surgical procedures in gynecologic oncology. Paraaortic lymph node dissection facilitates staging, prognosis, surgical and postoperative management of patients. It is one of the most challenging retroperitoneal surgeries. A comprehensive knowledge of the paraaortic region is mandatory. Intraoperative bleeding is the most common complication during lymphadenectomy due to direct vascular injury, poor tissue handling, exuberant retraction and possible anatomical variations of the vessels in the paraaortic region. Approximately, one-third of women will have at least one anatomic variation in the paraaortic region. It must be stressed that anomalous vessels may be encountered in every woman who will undergo surgery. Consequently, detailed knowledge of anatomical vessels variations is required in order to prevent iatrogenic vessel injury. The importance of these variations is well described in urology, vascular and general surgery. Conversely, in oncogynecological surgery, there are few articles, which described some of the vessels variations in the paraaortic region. The present article aims to propose a surgical classification and to describe the majority of vessels variation, which could be encountered during paraaortic lymphadenectomy in gynecologic oncology. Moreover, surgical considerations in order to prevent anomalous vessels injury are well described.

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Section: Marsupial Inferior Vena Cavamentioning

confidence: 89%

Section: Marsupial Inferior Vena Cavamentioning

confidence: 99%

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Paraaortic Lymphadenectomy in Gynecologic Oncology—Significance of Vessels Variations

Kostov

Selçuk

Yordanov

et al. 2022

JCM

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“…On an embryological basis, a pre-aortic iliac vein confluence represents the persistent ventral limb of the circumaortic venous ring with regression of the dorsal limb. This condition is the opposite of the development during normal embryogenesis [ 1 , 5 ]. Depending on the relationship between the iliac veins and the aortic bifurcation, three morphological variants of this anomaly have been described.…”

Section: Discussionmentioning

confidence: 99%

Infected Aortic Aneurysm with Infective Spondylitis in a Patient with Pre-Aortic Confluence of the Iliac Veins: An Unusual Triple Combination

Gunawardena

Godakandage

Abeywickrama

et al. 2021

Vasc Specialist Int

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It is uncommon for infective spondylitis to coexist with an infected aneurysm of the adjacent abdominal aorta. Also, pre-aortic confluence of the iliac veins or marsupial vena cava is a rare anatomical variant, which increases the potential for venous injury and hemorrhage during an emergency operation. Herein, we report the case of a 57-year-old male with these three pathologies, who was successfully treated with emergency open surgery. During surgery, we noted this anomaly and extensive destruction of the lumbar vertebral bodies. We discuss options to treat these rare pathologies with literature review.

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“…This anomaly is also termed "preaortic iliac venous confl uence''. Embryologically, it results from persistence of the superior compartment of the circumaortic venous ring, associated with regression of the posterior [34][35][36]. The anomaly is named "Marsupial" because such a position of vessels is usually observed in most marsupials [36].…”

Section: Marsupial Ivc Prevalence and Surgical Anatomymentioning

confidence: 99%

Embryological Aspects and Anatomical Variations of the Inferior Vena Cava – Its Importance in Gynecologic Oncology Surgery

Kostov

Hinkova

Dineva

et al. 2022

Journal of Biomedical and Clinical Research

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Summary Surgical procedures of the retroperitoneum are often performed in gynecologic oncology surgery clinics. The most complex among them is paraaortic lymphadenectomy. It is generally performed in cases of bulky lymph nodes in ovarian carcinomas and sarcomas to achieve optimal cytoreduction. In the early stages of ovarian cancer, type II non-endometrioid endometrial cancer, and in advanced stages of cervical cancer, paraaortic lymphadenectomy is an integral part of staging. Moreover, the retroperitoneum is approached in cases of retroperitoneal gynecologic sarcomas. The largest vessels of the human body – the inferior vena cava and the abdominal aorta are localized in the retroperitoneum. Therefore, iatrogenic vessel injury during oncogynecological surgery is more likely to affect the inferior vena cava. Anatomical variations of the vein additionally increase the risk of vascular lesions. Therefore, surgeons should be aware of possible anatomical variations. The present article aimed to highlight the heterogeneity of anatomical variations of the inferior vena cava related to gynecologic oncology surgery. Embryogenesis of the vein and its variations are also discussed. Additionally, some anomalies of the ureter, associated with the embryogenesis of the inferior vena cava, are mentioned.

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Marsupial vena cava mimicking lymph node enlargement on tomography

Cited by 3 publications

References 5 publications

Paraaortic Lymphadenectomy in Gynecologic Oncology—Significance of Vessels Variations

Paraaortic Lymphadenectomy in Gynecologic Oncology—Significance of Vessels Variations

Infected Aortic Aneurysm with Infective Spondylitis in a Patient with Pre-Aortic Confluence of the Iliac Veins: An Unusual Triple Combination

Embryological Aspects and Anatomical Variations of the Inferior Vena Cava – Its Importance in Gynecologic Oncology Surgery

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