Skull base dermoid cyst fistulizing to the nasal tip in a pediatric patient: case report
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Abstract
The dermoid cyst is a rare congenital lesion, secondary to an incomplete regression of ectodermal tissue. It’s incidence is 1/20,000-40,000 live births. Timely surgical resection must be performed to prevent intracranial involvement and/or complications. Imaging study determines it’s extension. Different surgical approaches have been recommended, all must adhere to Pollock’s 4 principles. The following study presents the case of a pediatric patient, 9 months old, with a dermoid cyst at the skull base with a fistulous path to the nasal tip. Contrasted nuclear magnetic resonance revealed a cystic mass in the region anterior to the crista galli communicated with a fistulous tract at the nasal tip. The patient was taken to surgery for cyst resection by external rhinoplasty combined with a transnasal endoscopic approach with satisfactory functional and aesthetic results, without recurrence. A Cerebrospinal fluid fistula was evidenced, as an intraoperative complication, it was corrected in the same surgical time.
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