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Choroid Plexus Carcinoma
Joseph Junewick, MD FACR
over 6 years ago
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ARSt Case Repository

Nasal Dermoid

Case Detail

Anatomy: Neck-Face
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Genetic or Congenital
Created: over 8 years ago
Updated: over 7 years ago
Tags: PEDS
Modality/Study Types: MR
Activities:
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History

13 month old male with visible soft lesion on the nasal bridge.


Case Images


Diagnosis

Nasal dermoid

Findings

MR – Axial T1, T2, diffusion-weighted and apparent diffusion map images demonstrate a small oval lesion present within the soft tissues just anterior to the nasal bridge with homogeneous T1 and T2 signal hyperintensity and restricted diffusion.

Discussion

Nasal dermoids, as well as nasal dermal sinuses and epidermoid cysts, develop secondary to anomalous closure of the anterior neuropore during development and can occur at multiple locations from the glabella to the columella. These lesions may be associated with external skin ostia or deep sinus tracts, which may extend intracranially. CT attenuation and MR signal intensity varies depending on content. Dermoid and epidermoid cysts are firm, nonpulsatile lesions that do not transilluminate and do not change in size with crying or with compression of the jugular veins.

Reference

Fitzpatrick E, Miller RH. Congenital midline nasal masses: dermoids, gliomas, and encephaloceles. J La State Med Soc 1996; 148:93-96.



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