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[Ultrasonographic diagnosis of Meckel's diverticulum--case report]
A Brodzisz1, E Dybiec, P Wieczorek
1Zakład Radiologii Dzieciecej Akademii Medycznej w Lublinie.
Abstract:
Meckel's diverticulum is the congenital anomaly of the gastrointestinal tract affecting about 2% of the population. It is a true diverticulum containing all layers of the ileum wall. Heterotopic tissue is frequently present (25%): gastric mucosa, duodenal mucosa, jejunal mucosa and pancreatic tissue. Meckel's diverticulum is localized about 50 cm from the ileo-colic valve on the external border of the ileum. Most of Meckel's diverticula are clinically silent; clinical symptoms (19%) are in cases of complications such as: strangulation of the bowel in a ring formed by the diverticulum, intussusception of the diverticulum into the ileum, volvulus, incarceration of the diverticulum in hernia, tumour originating in the diverticulum. The diagnosis of Meckel's diverticulum is very difficult. The most useful in the diagnosis are plain abdominal radiographs, barium studies, CT, sonography and scintigraphy Abdominal sonography shows a tubular fluid structure localized far from the coecum. The wall of the diverticulum is swollen and in the lumen are chyme or fat.
Insights
Meckel's diverticulum, a common congenital anomaly, often presents asymptomatically but can cause serious complications. Diagnosis is challenging, requiring various imaging techniques for identification.
Area of Science:
- Gastroenterology
- Congenital Anomalies
- Surgical Pathology
Background:
- Meckel's diverticulum is a congenital gastrointestinal anomaly affecting approximately 2% of the population.
- It is a true diverticulum, incorporating all layers of the ileum, and frequently contains heterotopic tissue such as gastric or pancreatic mucosa.
Observation:
- Typically located 50 cm from the ileo-colic valve, most Meckel's diverticula remain asymptomatic.
- Clinical symptoms arise in about 19% of cases due to complications like strangulation, intussusception, volvulus, hernia incarceration, or tumor formation.
Findings:
- Diagnosis of Meckel's diverticulum is often difficult.
- Effective diagnostic tools include plain abdominal radiographs, barium studies, CT scans, sonography, and scintigraphy.
- Abdominal sonography can reveal a tubular fluid structure distant from the cecum, characterized by a swollen wall and intraluminal chyme or fat.
Implications:
- Early and accurate diagnosis of Meckel's diverticulum is crucial for preventing severe complications.
- Understanding the varied presentations and diagnostic challenges aids clinicians in timely intervention.
- Further research into optimizing diagnostic modalities could improve patient outcomes for this common anomaly.