rectal venous plexus

直腸静脈叢

WordNet

1. of or contained in or performing the function of the veins; "venous inflammation"; "venous blood as contrasted with arterial blood"; "venous circulation"
2. a network of intersecting blood vessels or intersecting nerves or intersecting lymph vessels (同)rete
3. of or involving the rectum; "rectal cancer"

PrepTutorEJDIC

1. 静脈[血]の / 葉脈の多い
2. (神経・血管などの)網状組織
3. 直腸(rectum)の

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/04/26 04:34:37」(JST)

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[Wiki en表示]

Rectal venous plexus
Scheme of the anastomosis of the veins of the rectum.
The veins of the right half of the male pelvis.
Details
Drains to	Superior rectal vein
Identifiers
Latin	Plexus venosus rectalis, plexus haemorrhoidalis
Dorlands /Elsevier	p_24/12648664
TA	A12.3.10.010
FMA	18933
Anatomical terminology [edit on Wikidata]

The rectal venous plexus (or hemorrhoidal plexus) surrounds the rectum, and communicates in front with the vesical venous plexus in the male, and the uterovaginal plexus in the female.

A free communication between the portal and systemic venous systems is established through the rectal venous plexus.

Parts

It consists of two parts, an internal in the submucosa, and an external outside the muscular coat.

Internal plexus

The internal plexus presents a series of dilated pouches which are arranged in a circle around the tube, immediately above the anal orifice, and are connected by transverse branches.

This internal plexus is also known in some medical communities as the Irving plexus.

External plexus

• The upper part of the external plexus is drained by the superior rectal vein which forms the commencement of the inferior mesenteric vein, a tributary of the portal vein.
• The middle part of the external plexus is drained by the middle rectal vein which joins the internal iliac vein.
• The lower part of the external plexus is drained by the inferior rectal veins into the internal pudendal vein

Support

The veins of the hemorrhoidal plexus are contained in very loose connective tissue, so that they get less support from surrounding structures than most other veins, and are less capable of resisting increased blood-pressure.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

UpToDate Contents

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• 1. 成人における腸間膜静脈血栓症 mesenteric venous thrombosis in adults
• 2. 原発性直腸癌切除術における外科腫瘍学の原則 surgical oncologic principles for resection of primary rectal adenocarcinoma
• 3. 超音波ガイド下血管アクセスの原則 principles of ultrasound guided venous access
• 4. カテーテル関連の上肢静脈血栓症 catheter related upper extremity venous thrombosis
• 5. 腹会陰式直腸切断術（APR）：開腹術 abdominal perineal resection apr open technique

English Journal

• Investigation of factors affecting hypothermic pelvic tissue cooling using bio-heat simulation based on MRI-segmented anatomic models.

• Lin Y1, Lin WC2, Fwu PT1, Shih TC3, Yeh LR4, Su MY1, Chen JH5.
• Computer methods and programs in biomedicine.Comput Methods Programs Biomed.2015 Oct;122(1):76-88. doi: 10.1016/j.cmpb.2015.07.002. Epub 2015 Jul 13.
• This study applied a simulation method to map the temperature distribution based on magnetic resonance imaging (MRI) of individual patients, and investigated the influence of different pelvic tissue types as well as the choice of thermal property parameters on the efficiency of endorectal cooling ba
• PMID 26198131

• Multiple variations in the pelvic vasculature - a case report.

• Nayak SB1, Shetty SD2, Sirasanagandla SR2, P V3, Jetti R4.
• Journal of clinical and diagnostic research : JCDR.J Clin Diagn Res.2015 Feb;9(2):AD01-2. doi: 10.7860/JCDR/2015/10775.5526. Epub 2015 Feb 1.
• A thorough knowledge of possible variations of pelvic vasculature is very useful for surgeons, gynaecologists, radiologists, urologists and orthopaedic surgeons. We report multiple vascular variations in the left half of the pelvis of an adult male cadaver. Iliolumbar artery arose from the main trun
• PMID 25859441

• Development and clinical implementation of a hemostatic balloon device for rectal cancer surgery.

• Holman FA1, van der Pant N2, de Hingh IH3, Martijnse I3, Jakimowicz J3, Rutten HJ4, Goossens RH5.
• Surgical innovation.Surg Innov.2014 Jun;21(3):297-302. doi: 10.1177/1553350613507145. Epub 2013 Oct 30.
• BACKGROUND: Surgery for locally advanced and recurrent rectal carcinoma can be associated with major blood loss.OBJECTIVE: We developed a promising technique using a hemostatic balloon to stop uncontrollable bleeding.DESIGN: Models were developed using pelvic magnetic resonance imaging scans, and th
• PMID 24172167

Japanese Journal

• 肝動脈門脈短絡に連続する巨大門脈瘤・直腸静脈瘤を有したB型肝硬変の1治療例

• 遠藤 佑香,剛﨑 有加,今村 潤 [他],木村 公則,佐伯 俊一,高木 康伸,鎌田 憲子,林 星舟
• 肝臓 54(12), 841-849, 2013
• 症例は56歳男性．過去の肝生検に起因する肝動脈門脈短絡と連続する74 mm大の門脈瘤治療のため2004年4月に当院を再受診した．B型肝硬変であり，脾腎短絡路や拡張した下腸間膜静脈（IMV），それに連続する骨盤腔内を占める拡張した直腸静脈叢，腫瘤状の直腸静脈瘤など複数の遠肝性側副血行路が併存していた．2004年7月に右肝動脈に対してcoilingを施行し，その後異時的に開腹下IMV離断術，脾腎短絡路 …
• NAID 130003384495

• 直腸潰瘍感染から骨盤・Ｂａｔｓｏｎ静脈叢を介したＢ群連鎖球菌による椎体周囲感染と髄膜炎の１例

• 堤 涼介,齋藤 正明,吉澤 利弘
• 臨床神経学 51(7), 493-498, 2011
• 症例は62歳男性である．コントロール不良の糖尿病と頑固な便秘あり．入院時，意識障害，発熱，項部硬直，多形核球優位の髄液細胞数増多，糖低下から細菌性髄膜炎と診断した．画像検査で脊椎硬膜外膿瘍・傍脊柱筋膿瘍・脊椎炎も判明し，筋膿瘍穿刺液からB群連鎖球菌のStreptococcus agalactiae を検出した．感染は抗生剤による保存的治療でいずれも軽快した．経過中，突然の大量下血を契機に便秘にとも …
• NAID 130004504996

• 直腸癌における骨盤神経叢浸潤に関する骨盤神経叢全割標本による検討

• 鈴木 啓子,亀岡 信悟,中島 清隆,金木 昌弘,浜野 恭一
• 日本消化器外科学会雑誌 28(4), 825-830, 1995-04-01
• 直腸癌における骨盤神経叢への浸潤について,骨盤神経叢非温存直腸癌手術症例20例を対象とし,骨盤神経叢の全割標本を作成し検討を行った.骨盤神経叢浸潤は明らかに存在し,20例中3例(15%)に認められ,骨盤神経周囲の間質にも浸潤像を認めた.また骨盤神経叢浸潤を認めた症例は腸管壁内においても神経浸潤を認め,特に局所再発との関係が示唆されている神経周囲間隙浸潤を多く認めた.これらの症例の壁深達度はいずれも …
• NAID 110001317983

Related Links

• rectal venous plexus - definition of rectal venous plexus in ...

rec·tal ve·nous plex·us [TA] a venous plexus resting on the posterior and lateral walls of the rectum; it drains into the superior rectal vein to the portal, the middle rectal to the internal iliac, and the inferior rectal to the internal pudendal.

• About: Rectal venous plexus - wiki.dbpedia.org : About

The hemorrhoidal plexus (or rectal venous plexus) surrounds the rectum, and communicates in front with the vesical venous plexus in the male, and the uterovaginal plexus in the female. A free communication between the portal and ...

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★リンクテーブル★

リンク元	「直腸静脈叢」
関連記事	「venous」「plexus」「rectal」「plexuses」

「直腸静脈叢」

　　[★]

英

rectal venous plexus, hemorrhoidal plexus

ラ

plexus venosus rectalis

「venous」

　　[★]

• adj.

• 静脈性の、静脈の

関

vein、vena

　 　

「plexus」

　　[★]

神経叢

関

plexal、plexuses

　 　

「rectal」

　　[★]

• adj.

• 直腸の

関

rectum

　 　

「plexuses」

　　[★]

神経叢

関

plexal、plexus