Portal vein abnormalities: an imaging review

Madhusudhan, Kumble Seetharama; Vyas, Surabhi; Sharma, Sanjay; Srivastava, Deep Narayan; Gupta, Arun Kumar

doi:10.1016/j.clinimag.2018.07.002

Cited by 19 publications

(22 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Anatomic variants and congenital hypoplasia of the portal system can be found in 20–35% of individuals. Duplication of the portal vein is a rare type of anatomic variant of the portal vein (PV) system [ 1 , 9 ]. With the development of medical imaging equipment and the improvement of inspection technology, duplication of the portal vein is discovered more often than before and lead to some challenges and consequences, especially for junior residents.…”

Section: Introductionmentioning

confidence: 99%

A rare variation of duplicated portal vein: left branch derived from splenic vein mimicking cavernous transformation

Yang

Wang

et al. 2021

BMC Gastroenterol

View full text Add to dashboard Cite

Background Duplication of the portal vein is a rare type of anatomic variant of the portal vein (PV) system that can be incidentally found and can lead to various challenges and consequences. Herein, we report an unusual case to increase our understanding of such anatomic variants. Case presentation A 67-year-old asymptomatic woman was diagnosed with a liver space-occupying lesion by ultrasonography on a routine physical examination. The laboratory examinations from a local hospital suggested that her liver function tests were normal. The liver appeared normal on pre-contrast enhanced CT images. However, there were multiple complex abnormalities of PV found on contrast-enhanced CT scans, including two independent sources of PV (duplication), preduodenal PV, circum-portal pancreas, mimic cavernous transformation, abnormal branches of PV, and transient abnormal perfusion in the left lobe of the liver. MRI showed fatty infiltration in the left lobe of the liver. Conclusion This case extends our current understanding of the anatomical variations of the PV system. Knowledge of these complex and rare anatomical variations will help clinical doctors make a confident diagnosis or assist with proper planning of a surgical procedure.

show abstract

Section: Introductionmentioning

confidence: 99%

A rare variation of duplicated portal vein: left branch derived from splenic vein mimicking cavernous transformation

Yang

Wang

et al. 2021

BMC Gastroenterol

View full text Add to dashboard Cite

show abstract

“…Portal vein (PV) is the principal blood vessel transporting blood from the alimentary tract and spleen to the liver, accountable for 75% of hepatic blood supply [1]. The coalition of splenic and superior mesenteric veins lying posterior to the neck of pancreas leads to the formation of PV.…”

Section: Introductionmentioning

confidence: 99%

“…Normally, the portal vein splits at porta hepatis into two terminal branches: the right portal vein (RPV) and the left portal vein (LPV) [1]. The larger RPV further bisects into the right anterior portal vein (RAPV) and the right posterior portal vein (RPPV).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Role of CT Imaging With Three-Dimensional Maximum Intensity Projection Reconstruction in the Evaluation of Portal Vein Variants at a Tertiary Care Hospital

Ullah

Ahmed

Hamid

et al. 2020

Cureus

View full text Add to dashboard Cite

Introduction: Portal vein (PV) is the principal blood vessel transporting blood from the alimentary tract and spleen to the liver. The aim of this study is to determine the prevalence of PV anatomical variations in our population using multidetector CT with maximum intensity projection (MIP) technique at a tertiary care hospital. Methods: This cross-sectional study was prospectively conducted from November 2018 to June 2019 in the Department of Radiology at a tertiary care hospital in Karachi. After informed consent, all the patients with no known hepatic pathology undergoing routine abdomen CT were included in this study. Patients with previous hepatic resection surgeries, undiagnosed large hepatic tumors/metastasis, and those with PV thrombosis were excluded. Results: A total of 500 patients (256 males and 244 females) were included in the study; the mean age of female patients was relatively higher as compared to the male patients (53.80 ± 18.44 vs. 44.15 ± 19.94 years; p = 0.000). Standard PV anatomy (type 1) was found in 438 patients (87.6%). Trifurcation (type 2) occurred in 18 patients (3.6%). Right posterior portal vein as the first branch of main PV (type 3) was found in 22 patients (4.4%). A separate branch of the right portal vein (RPV) to segment VII (type 4) and separate branch of the RPV to segment VI (type 5) were found in 6 (1.2%) and 16 (3.2%) patients, respectively. Conclusion: Our study displayed a relatively higher frequency of standard PV anatomy (type 1) compared to previous studies. We highlight the role of MIP in the analysis of hepatic venous anatomy with its utility demonstrating improved detection of variations.

show abstract

“…Venous system variations are more common than other vascular variations [1]. Knowing the presence and course of variations in the venous system in the preoperative period reduces the complications that may occur during abdominal surgery operations and increases the success of the operation [2,3].…”

Section: Introductionmentioning

confidence: 99%

Common Venous Variations on Abdominal Multislice Computed Tomography

Havan

2019

Ortadogu Tıp Derg

View full text Add to dashboard Cite

Purpose:To determine the distribution of the types of variations in the portal vein and vena cava inferior and its branches using advanced image processing techniques in contrast enhanced abdominal multislice computed tomography (MSCT) examinations. Methods:The study included 471 patients, comprising 254 males (53.9%) and 217 females (46.1%) with a median age of 53.7 ± 16.1 years, who underwent abdominal MSCT between April 2011 and December 2017.Results: Of 471 patients, 2 patients (0.4%) had variation of the inferior vena cava, 122 patients (25.9 %) had variation of the hepatic vein, 162 patients (34.4%) had variation of the renal vein and 138 patients (29.3%) had variation of the portal vein. Conclusion:It is of great importance to use MSCT prior to surgical procedures such as transplantation, in which vascular variations are predetermined, and to pay attention to variations during reporting of the examination. Ortadoğu Tıp Dergisi / Ortadogu Medical Journal ORTADOGU MEDICAL JOURNAL 2019; 11(4): 484-489 485 ÖZ Amaç: Çalışmamızın amacı rutin intravenöz kontrastlı abdominal çok kesitli bilgisayarlı tomografi (ÇKBT) incelemelerinde portal venöz sistemde, vena kava inferior ve dallarında varyasyon tiplerinin dağılımını ileri görüntü işleme teknikleri kullanarak belirlemektir. Gereç ve Yöntem: Çalışmaya Nisan 2011-Aralık 2017 arasında abdominal ÇKBT çekilen ortalama yaşları 53,7 ± 16,1 olan 254 erkek (%53,9), ve 217 kadın (%46,1) olmak üzere toplam 471 hasta dahil edildi. Bulgular: 471 hastanın 2'sinde (%0,4) inferior vena kana varyasyonu, 122'sinde (%25,9) hepatik ven varyasyonu, 162'sinde (%34,4) renal ven varyasyonu ve 138 hastada (%29,3) da portal ven varyasyonu mevcuttu. Sonuç: Özellikle vasküler varyasyonların önceden bilinmesinin gerektiği transplantasyon gibi cerrahi işlemlerden önce abdominal ÇKBT çekilmesi ve raporlama sırasında varyasyonlara dikkat edilmesi çok önemlidir. Anahtar kelimeler: abdominal venöz varyasyonlar, hepatik ven, portal ven, inferior vena kava, renal ven, çok kesitli bilgisayarlı tomografi

show abstract

Portal vein abnormalities: an imaging review

Cited by 19 publications

References 61 publications

A rare variation of duplicated portal vein: left branch derived from splenic vein mimicking cavernous transformation

A rare variation of duplicated portal vein: left branch derived from splenic vein mimicking cavernous transformation

Role of CT Imaging With Three-Dimensional Maximum Intensity Projection Reconstruction in the Evaluation of Portal Vein Variants at a Tertiary Care Hospital

Common Venous Variations on Abdominal Multislice Computed Tomography

Contact Info

Product

Resources

About