Cystic meconium peritonitis: ultrasonographic features

Bowen, AʼDelbert; Mazer, Julius; Zarabi, Manuchehr; Fujioka, Munehiro

doi:10.1007/bf02386725

Cited by 20 publications

(14 citation statements)

References 14 publications

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“…Fibro-adhesive meconium peritonitis usually results if the perforation closes spontaneously before birth. When the perforation remains open, meconium cyst communicating with the perforated bowel site results [1,4]. Supporting this was the intraoperative finding of a giant cyst containing meconium surrounding the terminal ileum, the site of perforation in our case.…”

Section: Discussionsupporting

confidence: 69%

“…Antenatal perforation of the bowel leading to meconium peritonitis occasionally occurs as a localized, encysted, collection of meconium ranging from a few centimeters in size to huge cysts occupying most of the abdominal cavity when the perforation remains open [1,4]. Fibro-adhesive meconium peritonitis usually results if the perforation closes spontaneously before birth.…”

Section: Discussionmentioning

confidence: 99%

“…Meconium cyst results when meconium leaked into the peritoneum from antenatal perforation of the bowel is walled-off by fibrinous adhesion that ultimately becomes a well-defined capsule of granulation tissue if the perforation remains open [1-4]. The extrusion of meconium into the peritoneal cavity causes sterile chemical peritonitis.…”

Section: Introductionmentioning

confidence: 99%

“…The extrusion of meconium into the peritoneal cavity causes sterile chemical peritonitis. This is rare occurrence in about 1: 35000 live births and its progression to form meconium cyst is rarer [1,2-4]. …”

Section: Introductionmentioning

confidence: 99%

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"Growing" meconium cyst in one of a discordant twin: a case report

Abdulkadir

Abdur-Rahman

2009

Cases Journal

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IntroductionGiant meconium cyst resulting from antenatal bowel perforation is rare and hardly reported in multiple gestations. We found only four documented cases in the electronic literature.Case presentationWe report a giant meconium cyst in an 11-hour-old Nigerian boy of a discordant twin having ultrasonographic and plain radiographic diagnosis and surgical confirmation. Increasing abdominal girth from 35 cm to 41 cm within four hours of admission without ascites, pneumoperitneum and significant bowel distension make us assumed the meconium cyst to be “growing” in size. We reviewed the literature and proposed that where the fibrinous wall of meconium cyst allows for distensibility and the communication between the perforated bowel and meconium cyst persists, the meconium cyst acting as reservoir may continue to “grow” in size without remarkable intestinal distension probably, until the elastic limit is lost.ConclusionMeconium cyst can occur in twin pregnancy, grow to occupy the abdomen almost completely and may cause neonatal apnoea. The outcome is good post surgery.

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Section: Discussionsupporting

confidence: 69%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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"Growing" meconium cyst in one of a discordant twin: a case report

Abdulkadir

Abdur-Rahman

2009

Cases Journal

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“…In the generalized condition, highly echogenic material spreads throughout the abdomen and around the bowel loops to produce a characteristic "snowstorm" appearance (22). Encysted collections of meconium range from homogeneous to heterogeneous in echogenicity and may be ill defined or well defined (23).…”

Section: Low Intestinal Obstructionmentioning

confidence: 99%

Congenital Anomalies of the Small Intestine, Colon, and Rectum

Berrocal¹,

Lamas²,

Gutiérrez³

et al. 1999

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Congenital anomalies of the gastrointestinal tract are a significant cause of morbidity in children and, less frequently, in adults. These abnormalities include developmental obstructive defects of the small intestine, anomalies of the colon, anomalies of rotation and fixation, anorectal anomalies, and intestinal duplications. Neonates with complete high intestinal obstruction do not usually require further radiologic evaluation following radiography, whereas those with complete low obstruction should undergo a contrast material enema examination. An upper gastrointestinal series must be performed in all patients with incomplete intestinal obstruction because management is different in each case. In low intestinal obstruction, ultrasonography (US) may help differentiate between small bowel obstruction and colonic obstruction. In addition, US can help correctly identify meconium ileus and meconium peritonitis and is useful in the diagnosis of enteric duplication cysts. In malrotation and anorectal anomalies, computed tomography (CT) and magnetic resonance (MR) imaging can provide superb anatomic detail and added diagnostic specificity. Intestinal duplications manifest as an abdominal mass at radiography, contrast enema examination, or US. At CT, most duplications manifest as smoothly rounded, fluid-filled cysts or tubular structures with thin, slightly enhancing walls. At MR imaging, the intracystic fluid has heterogeneous signal intensity on T1-weighted images and homogeneous high signal intensity on T2-weighted images. Familiarity with these gastrointestinal abnormalities is essential for correct diagnosis and appropriate management.

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