Ectopic presacral choroid plexus cyst in a neonate

Area of Science:

• Neonatal surgery
• Pediatric neurosurgery
• Developmental abnormalities

Background:

• Choroid plexus cysts are typically found within the brain ventricles.
• Ectopic choroid plexus tissue is rare and can occur in various locations.
• Presacral masses in neonates require careful diagnostic evaluation.

Observation:

• A neonate presented with a soft lump on the left buttock shortly after birth.
• Imaging revealed a presacral cystic lesion extending to the buttocks.
• The lesion consisted of multiple septated cystic masses without connection to the spinal canal or rectum.

Findings:

• The presacral cystic lesion was surgically resected.
• Histopathological examination confirmed the diagnosis of an ectopic choroid plexus cyst.
• This represents the first reported case of a presacral ectopic choroid plexus cyst in the English literature.

Implications:

• This case expands the known spectrum of ectopic choroid plexus cyst locations.
• Highlights the importance of considering rare diagnoses in neonatal presacral masses.
• Provides a reference for surgical management and diagnosis of similar rare pediatric conditions.