Hosting 718 files, 2916 images, and 4 contributors.

 
Random Case

Urinary Bladder Rupture
Joseph Junewick, MD FACR
over 5 years ago
Enter A Workflow
Standard2   Academic2

Please choose a workflow. A standard workflow allows you to browse the repository with full case detail; the academic workflow allows you to browse the repository with limited case detail revealed. Double click on the images to launch image viewer.

ARSt Case Repository

Anterior Fontanelle Dermoid

Case Detail

Anatomy: Brain-Spine
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Neoplasia Benign
Created: over 6 years ago
Updated: 11 months ago
Tags: PEDS
Modality/Study Types: MR CT
Activities:
Adobe32 PDF Imagej32 ImageJA

History

12 year old female with “bulging fontanel”.


Case Images


Diagnosis

Anterior Fontanel Dermoid

Findings

CT – Axial and sagittal and 3D reformatted images show a circumscribed fluid attenuation mass in the anterior fontanelle with smooth bony remodeling.

MR – Sagittal T1, coronal T2 and sagittal post-gadolinium T1 images show non-enhancing, minimally heterogenous but predominantly T1 hypo intense and uniformly T2 hyper intense extradural intrasutural lesion.

Discussion

Dermoid of the anterior fontanelle is the most common site of the skull and face after those of the eyebrow. They are twice as common in females than males. Dermoids may be noted at birth or in the first months of life. They enlarge slowly as a result of the accumulation of secretions within them. They are nontender, fluctuant, and slightly mobile. The differential diagnosis of a mass lesion at the anterior fontanelle includes hemangioma, lipoma, epidermoid cyst, sinus pericranii, meningocele and encephalocele.

Reference

Standard MW and Currarino GC. Subgaleal dermoid cyst of the anterior fontanelle: Diagnosis by sonography. AJNR (1990); 11:349-352.



Corporate Office: 616.363.7272, 3264 North Evergreen Drive, Grand Rapids, MI 49525

Spectrum Health Helen Devos Childrens Hospital GE HealthCare