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Updated: Jan 10, 2026

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
[Nasal dermoid cyst with intracranial extension]
Mads Bolding Rasmussen1, Thomas Hjuler2, Bjarki Ditlev Djurhuus1
1Øre-, Næse- og Halskirurgisk Afdeling, Sjællands Universitetshospital, Køge.
Abstract:
Nasal dermoid cysts are rare congenital anomalies that may cause recurrent infections and have the potential for intracranial extension. In this case, a six-year-old boy presented with fever, nasal swelling, and periorbital oedema. A pit found on the nasal tip raised suspicion of a dermoid cyst. MRI confirmed a dermoid cyst and furthermore showed intracranial extension. Surgery was performed at a tertiary unit in a joint venture by ENT and neurosurgery teams. Dermoid cysts should be considered in recurrent nasal infections, especially if a pit is seen between the glabella and columella.
Insights
Nasal dermoid cysts are rare congenital growths that can cause infections and spread to the brain. Early detection, especially with a nasal pit, is key for timely surgical intervention.
Area of Science:
- Pediatric Surgery
- Congenital Anomalies
- Neurosurgery
Background:
- Nasal dermoid cysts are uncommon congenital malformations.
- They can lead to recurrent sinonasal infections.
- Intracranial extension is a potential complication.
Purpose of the Study:
- To report a case of a pediatric patient with a nasal dermoid cyst.
- To highlight the diagnostic and management challenges.
- To emphasize the importance of considering nasal dermoid cysts in specific clinical scenarios.
Main Methods:
- Clinical presentation review of a six-year-old boy.
- Diagnostic imaging using Magnetic Resonance Imaging (MRI).
- Surgical excision by combined Ear, Nose, and Throat (ENT) and neurosurgery teams.
Main Results:
- The patient presented with fever, nasal swelling, and periorbital edema.
- MRI confirmed a nasal dermoid cyst with intracranial extension.
- Successful surgical removal was achieved.
Conclusions:
- Nasal dermoid cysts require high clinical suspicion, particularly with a visible nasal pit.
- Prompt diagnosis and multidisciplinary surgical approach are crucial for managing intracranial extension.
- Consider nasal dermoid cysts in pediatric recurrent sinonasal infections.
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