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Medical Definition of Allantoic cyst
1. Cyst occurring in a persistent portion of the urachus, presenting as an extraperitoneal mass in the umbilical region. It is characterised by abdominal pain, and fever if infected. It may rupture, leading to peritonitis, or it may drain through the umbilicus. (12 Dec 1998)
Lexicographical Neighbors of Allantoic Cyst
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