Posterior fossa abscesses secondary to dermal sinus associated with dermoid cyst in children

B Yang1, H-M Jin, L-P Sun

  • 1Department of Pediatric Surgery, Affiliated Xinhua Hospital, Shanghai Children's Medical Center, Medical College of Shanghai Jiaotong University, Shanghai, PR China.

Neuropediatrics
|May 28, 2008
PubMed

Insights

Posterior fossa abscesses in children can stem from dermoid cysts linked to dermal sinuses. Early surgical intervention is crucial for successful outcomes and preventing neurological damage.

Area of Science:

  • Pediatric Neurosurgery
  • Neurology
  • Medical Imaging

Background:

  • Posterior fossa abscesses are rare, particularly when secondary to dermal sinuses associated with dermoid cysts.
  • Dermal sinuses, often presenting as occipital skin dimples, can serve as a pathway for bacterial infections.

Observation:

  • Four pediatric cases of posterior fossa abscesses secondary to dermoid cysts and dermal sinuses were analyzed over 15 years.
  • Patients presented with increased intracranial pressure and meningitis symptoms due to bacterial infection.
  • Computed Tomography (CT) and Magnetic Resonance (MR) imaging were vital in identifying the dermal sinus pathway and intracranial lesions.

Findings:

  • Complete surgical resection of the dermoid cyst and abscess was achieved in all cases.
  • No neurological sequelae were observed post-intervention.
  • Bacterial infection through the dermal sinus was confirmed as the cause of cerebellar abscesses.

Implications:

  • Occipital dermal sinuses in children warrant consideration for underlying posterior fossa dermoid cysts.
  • Prompt neurosurgical evaluation and intervention, including drainage and resection, are essential for managing these rare conditions.
  • Advanced imaging techniques like CT and MR are critical for accurate diagnosis and surgical planning.

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