首页 理论教育 憩室内翻症

憩室内翻症

时间:2023-05-12 理论教育 版权反馈
【摘要】:Meckel憩室内翻症系指Meckel憩室内翻于正常肠管的病理生理状态。起始部有特征性环状皱襞,临床上发现上述所见可确诊为Meckel憩室内翻症。Meckel憩室引起肠套叠的原因多是Meckel憩室内翻症所致。不过,一旦出现小肠X线检查呈特异性表现即可诊断Meckel憩室内翻症或肠管重复畸形。

第四节 Meckel憩室内翻症

一、病理生理特点

Meckel憩室内翻症(invagination of Meckel’s diverticulum)系指Meckel憩室内翻于正常肠管的病理生理状态。其内翻机制:①广基底内翻形态;②为真性憩室,其本身可以蠕动;③憩室未固定于肠系膜、肠管或其他脏器,呈游离状态;④肠管呈负压等学说等。不过,内翻憩室几乎可以自然复原。

术中在末端回肠内可触及棍棒状肿块,可见起始部肠系膜附着对侧有回肠浆膜内翻。切除标本可见其表面被覆正常小肠黏膜,有时呈凹凸不规则的棍棒状隆起性病变,其前端多形成溃疡或糜烂。起始部有特征性环状皱襞,临床上发现上述所见可确诊为Meckel憩室内翻症。

二、临床特点

1.临床症状 腹痛是最常见的临床表现,继发于消化道出血的便血及贫血,其他还有腹部肿块及呕吐等症状。Meckel憩室引起肠套叠的原因多是Meckel憩室内翻症所致。

2.术前诊断 术前常诊断肠套叠、阑尾炎及原因不明的消化道出血,影像学检查多诊断为小肠肿瘤。不过,一旦出现小肠X线检查呈特异性表现即可诊断Meckel憩室内翻症或肠管重复畸形。

三、影像学检查

1.小肠X线检查 其特征性表现是在远端回肠发现一个柔软,且形态容易变化的囊状或棍棒状肿物。起始部附近的特征性Kerckring皱襞样环状皱襞,也可认为是肠管重复畸形的皱襞。

2.内镜检查(术中内镜检查) 呈棍棒状,基本上被覆正常小肠黏膜,其前端可见发红糜烂,起始部可见环状皱襞。

3.腹部超声波(US)检查 US对于合并肠套叠的Meckel憩室内翻症诊断有用,在套叠部位的横断面可见其前端因明显水肿,周围呈低回声,中心呈高回声的大小不同“靶征”。小的“靶征”为内翻的Meckel憩室作为肠套叠的前端,是US检查的特异性表现。嵌入部位附近有内筒肠管和外筒肠管的环状影像,即多环征(multiple concentric ring sign),而在纵断面上呈假肾征(pseudo-kidney sign)。

4.腹部CT扫描 与超声波检查一样,适应于肠套叠的检查。套叠部位横断面的外层为高密度,内层为脂肪HU值低密度的花生状,或筒状结构的靶征。

四、治疗

一旦明确诊断,须外科手术切除。

五、鉴别诊断

单纯依据小肠X线检查、小肠镜、手术切除标本、病理组织学检查等,与肠管重复畸形相鉴别较困难。

(程 骏)

参考文献

1.石长青,金正明,李汝昌,等.小肠憩室病的临床及病理特点(附33例报告).中国实用外科杂志,2002,22(8):481~483

2.朱雄伟,陈刚亮,王强,等.28例小肠憩室并发症的临床特点.中国综合临床,2005,21(4):340~341

3.刘亚东.48例Lemmel综合征患者的治疗分析.中华胃肠外科杂志,2005,8(2):173

4.汝涛,李强,郝希山,等.47例原发性肛管直肠恶性黑色素瘤临床诊断与治疗.中华胃肠外科杂志,2005,8(2):172~173

5.何小东,马恩陵,唐伟松,等.119例小肠憩室的临床治疗分析.中国胃肠外科杂志,2000,3(4):245~246

6.土居昭广,江川信一,真岛利匡,他.内翻した小肠消化管重复症の一例.胃と肠,2004,39:1070~1074

7.山口宗之,竹内节夫,村天均,他.99mTcにより诊断しえたMeckel憩室の1例と本邦报告580例の统计学的观察.临外,1976,31:1647~1661

8.成田洋,小出肇,武田佳秀,他.回肠假性憩室穿孔の1例.外科,1988,46:307~312

9.里见匡迪,大野忠寺,水下隆弘,他.多发性小肠憩室.临床消化器内科,1994,9:1829~1835

10.饭冢佳彦,渊上忠彦,岭勇二,他.Meckel憩室内翻症の1例.日消志,1999,34:1078~1081

11.重松明博,饭田三雄,富永雅也,他.憩室入口部に溃疡を认めた多发性空肠憩室の1例.Gastroenterol Endosc,1989,31:2728~2733

12.清成正智.卵黄出血を伴えるメッケル憩室の一例と自验四例を含めて本邦に于けるメッケル憩室の统计的观察.日消志,1964,61:199

13.渡边裕,岩堤庆明,安藤充晴,他.空回肠憩室-とくにメッケル憩室について.外科,1968,30:1135~1139

14.蒲池紫乃,樱井俊弘,西村拓,他.Meckel憩室内翻症の1例.Gastroenterol Endosc,2000,42:852~857

15.福田能启,田村和民,平川博之,他.小肠憩室.临床消化器内科,1988,3:697~705

16.藤泽圣,松本主之,会尺一兴,他.术前诊断しえた空肠憩室部小肠癌の1例.胃と肠,2001,36:891~894

17.Arhrass R,Yaffe MB,Fisher C,et al.Small-bowel diverticulosis:perceptions and reality.J Am Coll Surg,1997,184:383~388

18.Ben Salem D,Benslimane Y,Salve N,et al.Meckel’s diverticulum and mesenterium commune in a patient with gastrointestinal bleeding.Acta Radiol,2002,43(3):312~314

19.Burt TB,Knochel JQ,Datz FL,et al.Uterine activity:apotential case of false-positive Meckel’s scans.J Nucl Med,1981,22:886~887

20.DiGiacomo JC,Cottene FJ.Surgical treatment of Meckel’s diverticulum.South Med J,1993,86:671~675

21.Harkins HN.Intussusceptions due to invaginated Meckel’s diverticulum:report of 2cases with study of 160ca-ses collected from literature.Ann Surg,1933,98:1070

22.Haubrick WS,Schaffner F,Berk JE.Malaborption syndromes.Bockus gastroenterology.5th ed.Philadelphia:W.B Saunders,1995

23.Hichey EJ,Schaal PG,Richards GK.Treatment of perforated diverticular disease of the colon.Adv Surg,1978,12:85~109

24.Jewett T,Duszynski D,Allen J.The visualization of Meckel’s diverticulum with 99mTc-Pertechnetate.Surgery,1970,68:567~570

25.Kohler L,Sauerland S,Neugebauer E.Diagnosis and treatment of diverticular disease:results of a consensus development conference.The scientific Committee of the European Association for Endoscopic Surgery.Surg Endosc,1999,13:430~436

26.Krishnamurthy S,Kelly MM,Rohrmann CA,et al.Jejunal diverticulosis.Gastroenterology,1983,85:538~547

27.Kubo A,Kagaya T,Nakagawa H.Studies on complication of diverticular disease of the colon.Jpn J Med,1985,24:39~43

28.Liberman MA,Phillips EH,Carroll BJ,et al.Laparoscopic colectomy for diverticular disease.Br J Surg,1997,84:55

29.Long WE,Vernava III AM.Clinical implications of jejunoileal diverticular disease.Dis Colon Rectum,1992,35:381~388

30.Martin JP,Cnnor PD,Charles K.Meckel’s diverticulum.Am Fam Physician,2000,15(4):1040~1042

31.Murray JJ,Schoetz DJ Jr,Coller JA,et al.Intraoperative colonic lavage and primary anastomosis in nonselective colon resection.Dis Colon Rectum,1991,34:527~531

32.Okazaki M,Hagashihara H,Yamasaki S,et al.Angiographic findings of Meckel’s diverticulum—The characte-ristic appearance of the vitelline artery.Abdom Imaging,1993,18:15~19

33.O’Sullivan GC,Murphy D,O’Brien MG,et al.Laparoscopic management of generalized peritonitis due to perfo-rated colonic diverticulitis.Am J Surg,1996,171:432~434

34.Poulsea KA,Qvist N.Sodium pertechnetate scintigraphy in detection of Meckel’s diverticulum.Eur J Pediatr Surg,2000,10(4):231

35.Ross CB,Richards WO,Sharp KW,et al.Diverticular disease of the jejunum and its complications.Ann Surg,1990,56:319~324

36.Sher ME,et al.Laparoscopic surgery for diverticulitis.Surg Endosc,1997,11:264~267

37.Soltero MJ,Bill AH.The natural history of Meckel’s diverticulum and its relation to incidental removal:a study of 202cases of diseases Meckel’s diverticulum found in King’s Country.Washington over a fifteen year period.Am J Surg,1976,132:168~173

38.The American Society of Colon and Rectal Surgeons.Practice parameters for the treatment of sigmoid diverticuli-tis-supporting documentation.Dis Colon Rectum,2000,43(3):290~297

39.Vignati PV,Welch JP,Cohen JL.Long-term management of diverticulitis in young patients.Dis Colon Rectum,1995,38:627~662

免责声明:以上内容源自网络,版权归原作者所有,如有侵犯您的原创版权请告知,我们将尽快删除相关内容。

我要反馈