meconium pseudocyst

Röntgenbild
eines Neugeborenen mit großer, raumfordernder Mekoniumzyste (besser - pseudozyste), die Magen und Darmstrukturen nach außen verdrängt. Man erkennt gut die zarte, randständige Verkalkung. Ursächlich war in diesem Fall ein Atresie des terminalen Ileums. Die schräg verlaufende Verschattung unten in der Mitte ist die Nabelklemme.
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Meconium
pseudocyst secondary to ileum volvulus perforation without peritoneal calcification: a case report. Ultrasound image: 32.3 weeks of gestation. Transverse scan image thorough the fetal abdomen identifying a mass occupying the entire left hemiabdomen (meconium pseudocyst), with mixed echogenicity. No calcifications were observed.
jmedicalcasereports.biomedcentral.com • CC-by-2.0
Meconium
pseudocyst secondary to ileum volvulus perforation without peritoneal calcification: a case report. Ultrasound image: 32.3 weeks of gestation. Longitudinal scan image thorough the fetal abdomen identifying a mass occupying the entire left hemiabdomen (meconium pseudocyst), with mixed echogenicity. No calcifications were observed.
jmedicalcasereports.biomedcentral.com • CC-by-2.0
Meconium
pseudocyst secondary to ileum volvulus perforation without peritoneal calcification: a case report. Magnetic resonance imaging: 32.4 weeks of gestation. Longitudinal magnetic resonance image of the fetus demonstrating the meconium pseudocyst; a 72 × 58 mm, heterogeneous, mesenteric mass without necrosis causing significant distortion of the small intestine to the left. No calcification or ascites were observed.
jmedicalcasereports.biomedcentral.com • CC-by-2.0
Meconium
pseudocyst secondary to ileum volvulus perforation without peritoneal calcification: a case report. Magnetic resonance imaging: 32.4 weeks of gestation. Transverse magnetic resonance image of the fetus demonstrating the meconium pseudocyst; a 72 × 58 mm, heterogeneous, mesenteric mass without necrosis causing significant distortion of the small intestine to the left. No calcification or ascites were observed.
jmedicalcasereports.biomedcentral.com • CC-by-2.0
Radiopaedia • CC-by-nc-sa 3.0 • de

Meconium pseudocyst formation is a complication that can occur with meconium peritonitis.

Pathology

It occurs when the extruded meconium becomes walled off within the peritoneal space.

Radiographic features

Plain radiograph

May be seen as a rim calcified mass within the abdomen.

Antenatal ultrasound

Meconium pseudocyst is seen may be sonographically seen as a relatively well-defined hypoechoic mass often surrounded by an echogenic calcified wall .

Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Meconiumpseudozyste:
Mekoniumperitonitis
 
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