{"title":"左侧下腔静脉半奇静脉-副半奇静脉延续1例并文献复习","authors":"Nedasadat Rezaei , Manizhe Ataee Kachuee , Peyman Famili , Ghazaleh Salehabadi","doi":"10.1016/j.radcr.2025.05.086","DOIUrl":null,"url":null,"abstract":"<div><div>Left side transposition of the inferior vena cava (IVC) is a rare anatomical variation formed during its complex embryonic developmental process. We present a 71-year-old female patient with an incidentally identified left-sided IVC in contrast-enhanced computed tomography during gastrointestinal bleeding workup. The left-sided IVC formed a hemiazygos-accessory hemiazygos continuation. A narrowing of the right retroaortic renal vein, consistent with the nutcracker phenomenon, was observed. Left-sided IVC, although asymptomatic in the majority of cases, may act as source of diagnostic confusion or contribute to deep vein thrombosis of lower extremities, especially in younger patients. Care must be practiced to establish a comprehensive diagnosis and minimize procedural risks.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 9","pages":"Pages 4760-4767"},"PeriodicalIF":0.0000,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Hemiazygos-accessory hemiazygos continuation of left-sided inferior vena cava: A case report and review of the literature\",\"authors\":\"Nedasadat Rezaei , Manizhe Ataee Kachuee , Peyman Famili , Ghazaleh Salehabadi\",\"doi\":\"10.1016/j.radcr.2025.05.086\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Left side transposition of the inferior vena cava (IVC) is a rare anatomical variation formed during its complex embryonic developmental process. We present a 71-year-old female patient with an incidentally identified left-sided IVC in contrast-enhanced computed tomography during gastrointestinal bleeding workup. The left-sided IVC formed a hemiazygos-accessory hemiazygos continuation. A narrowing of the right retroaortic renal vein, consistent with the nutcracker phenomenon, was observed. Left-sided IVC, although asymptomatic in the majority of cases, may act as source of diagnostic confusion or contribute to deep vein thrombosis of lower extremities, especially in younger patients. Care must be practiced to establish a comprehensive diagnosis and minimize procedural risks.</div></div>\",\"PeriodicalId\":53472,\"journal\":{\"name\":\"Radiology Case Reports\",\"volume\":\"20 9\",\"pages\":\"Pages 4760-4767\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-06-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Radiology Case Reports\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1930043325005126\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiology Case Reports","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1930043325005126","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Medicine","Score":null,"Total":0}
Hemiazygos-accessory hemiazygos continuation of left-sided inferior vena cava: A case report and review of the literature
Left side transposition of the inferior vena cava (IVC) is a rare anatomical variation formed during its complex embryonic developmental process. We present a 71-year-old female patient with an incidentally identified left-sided IVC in contrast-enhanced computed tomography during gastrointestinal bleeding workup. The left-sided IVC formed a hemiazygos-accessory hemiazygos continuation. A narrowing of the right retroaortic renal vein, consistent with the nutcracker phenomenon, was observed. Left-sided IVC, although asymptomatic in the majority of cases, may act as source of diagnostic confusion or contribute to deep vein thrombosis of lower extremities, especially in younger patients. Care must be practiced to establish a comprehensive diagnosis and minimize procedural risks.
期刊介绍:
The content of this journal is exclusively case reports that feature diagnostic imaging. Categories in which case reports can be placed include the musculoskeletal system, spine, central nervous system, head and neck, cardiovascular, chest, gastrointestinal, genitourinary, multisystem, pediatric, emergency, women''s imaging, oncologic, normal variants, medical devices, foreign bodies, interventional radiology, nuclear medicine, molecular imaging, ultrasonography, imaging artifacts, forensic, anthropological, and medical-legal. Articles must be well-documented and include a review of the appropriate literature.