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腹膜及腹膜腔(经典讲解汇总)
腹部平片--肠扭转,大肠梗阻,中毒性巨结肠,腹膜后积气
卧位及立位腹平片——正常,气腹,小肠梗阻,前哨肠曲
History:A65-year-oldmanpresentstotheemergencyroom(ER)withgeneralizedabdominalpain.Thepatienthasahistorypulmonarysarcoidosisbutnopriorhistoryofabdominalsurgeries.
病史:65岁男性,急腹痛;有肺结节病病史,无腹部手术史。
ChestandabdominalradiographswereorderedbytheERphysician.Frontalview,uprightradiographsofthechestandabdomenareshownbelow.
急诊拍摄胸腹部平片,胸部正位片及腹部立位片如下所示。
腹平片示有无肠梗阻?(答案:无)
CTimages:Therewasacontinuedconcernforanintra-abdominalprocess.ACTscanoftheabdomenandpelviswithoralcontrastwasperformed.Multipleaxialandcoronalimagesoftheabdomenandpelvisareshownbelow.为进一步了解腹腔内情况,行口服造影剂腹盆部CT扫描,轴位及冠状图像如下所示。
Findings
Abdominalradiograph:Thereisamoderateamountofgasandstoolthroughoutthecolonwithnodefiniteevidenceofadynamicileusorobstruction.
CToftheabdomenandpelvis:
Thereisdisplacementofthececumanteriorlyandsuperiorly,locatednearthemidline.
Thereisadefectinthemesenteryintherightabdomenwithherniationofsmall-bowelloopsthroughthemesentericdefect.
Thereisnoevidenceofobstructionatthistime,althoughoralcontrasthasnotyetreachedtheinvolvedloopsofbowel.
Thereisnopneumatosisorfreeair.
影像表现:
腹平片:结肠内可见中等量的气体及粪便,无麻痹性肠梗阻征象。
腹盆部CT:
盲肠向前上移位,靠近中线处;
右腹部局部肠系膜缺失,小肠袢经肠系膜缺损处形成疝;
此时仍未出现肠梗阻,尽管口服造影剂仍然没有抵达受累肠袢;
腹腔内未见游离气体。
Differentialdiagnosis
Internalhernia
Small-bowelobstruction
Intussusception
Volvulus
鉴别诊断:
腹内疝
小肠梗阻
肠套叠
肠扭转
Diagnosis:Rightabdominalinternalhernia
最后诊断:右侧腹内疝
Thereisnoevidenceofobstructionatthistime.However,giventhepatient’spain,surgicalconsultationisre