PubMed · 13900152
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I GONI MORENO. 1961-11-20. [Chronic eventration].. https://pubmed.ncbi.nlm.nih.gov/13900152/
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Gallbladder agenesis is a rare congenital biliary anomaly that may be associated with other biliary and extrabiliary congenital anomalies. Awareness of this entity by clinicians and radiologists is essential because many of these patients present with biliary symptoms and have unnecessary operations. In the present article, the relative epidemiological, etiological (embryology and development), pathophysiological, diagnostic tools and pitfalls and management aspects of this rare anatomic anomaly are briefly discussed through review of the literature. Particular reference to the difficulty in preoperative diagnosis is highlighted. The importance of the possibility of preoperative diagnosis to avoid unnecessary surgery is stressed.
We describe the magnetic resonance (MR) patterns of a variety of fetal gastrointestinal (GI) abnormalities. Thirty-two fetuses between 23 and 38 weeks' gestation with abnormal appearance of the GI tract by ultrasound underwent MR imaging with T1- and T2-weighted sequences. The MR aspect of intestinal atresia (duodenal atresia, one case; small bowel atresia, nine cases) included dilatation of the bowel loops, accurate assessment of the normal bowel distal to the atresia (except in the patient with multiple atresia and apple-peel syndrome), and micro-rectum with decreased T1 signal (except in the patient with duodenal atresia). Megacystis-microcolon-intestinal hypoperistalsis syndrome (one case) was indicated by an abnormal signal of the entire bowel and an abnormal pattern for the urinary tract. Meconium pseudocysts (two cases) were easily differentiated from enteric cysts (two cases). High anorectal malformations with (two cases) or without (one case) urinary fistula and cloacal malformation (one case) are described and MR findings are discussed. The capability of MR imaging to demonstrate the normal bowel with intraperitoneal anomalies (e.g., congenital diaphragmatic hernia, and sacrococcygeal teratoma) is emphasized. MR imaging is informative in the diagnosis of GI tract abnormalities, especially the severe malformations, with much more accuracy than sonography.
BACKGROUND/PURPOSE: The authors studied gastrointestinal motility in a patient with total intestinal aganglionosis (TIA) and the effect of octreotide (OCT) on ileal motility in this patient. METHODS: The 3200-g girl received ileostomy at 50 cm proximal to the ileocecal site and jejunostomy at 15 cm distal to the ligament of Treitz because of severe ileus owing to TIA. Histology of the intestines, including jejunostomy, showed no ganglion cells. Gastro-duodeno-jejunal and distal ileal manometries were done 8 months after birth. RESULTS: In upper gastrointestinal manometry, sporadic contractions and clusters consisting of 3 to 5 contractions were observed in the duodenum and jejunum, but no typical phase 3 was observed during the 3-hour recording period. In ileal manometry, long-lasting repetitive contractions were recorded at 2 distal sites. In the most proximal ileum, the frequency of contractions was less than in the 2 distal sites. OCT administration induced a decrease in the amplitude of contractions during the first 20 minutes. The amplitude increased thereafter and reached a level higher than that before OCT administration. CONCLUSIONS: In this patient, the predominant manometry finding was the remarkable hypermotility of the ileum. OCT induced a transient decrease in ileal motility and an increase in motility thereafter.