Atretic cephalocele

Case contributed by Dr Dalia Ibrahim

Presentation

Palpable high parietal subgaleal mass

Patient Data

Age: 6 months old
Gender: Male
Modality: MRI

Mid-line subcutnous cystic lesion with vertically oriented primitive falcine vein pointing to the cephalocele.

Modality: MRI

Vertically oriented persistent falcine vein.

Fenestrated superior sagittal sinus at the site of the cephalocele.

Modality: Annotated image

Sagittal T2 WI shows:

Mid-line subcutaneous cystic lesion (atertic cephalocele) (AC),

Vertically oriented persistent primitive falcine vein (open arrow) & an adjacent hardly distinct thin fibrous stalk (solid arrow) are pointing to and connecting the cephalocele through the calvarial defect.

Prominent superior cerebellar cistern & suprapineal recess.

Axial T2 WI shows:

Fenestration of the superior sagittal sinus  (open arrows) surrounding the cephalocele fibrous stalk (Solid arrow)

Coronal T1 WI shows:

Peaked configuration of the tentorium.

Case Discussion

Atretic cephalocele Consists of:

  • Subgaleal mass with intracranial extension.
  • Vertical primitive falcine vein and fibrous tract point to the subcutanous scalp mass.
  • Focal fenestration of the superior sagittal sinus at the AC.

Differential diagnosis:

  • Sinus pericranii.
  • Dermoid or epidermoid sinus.
  • Sebaceous cyst.
  • Cephalhematoma.
  • Infantile hemangioma.

 

 

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Case Information

rID: 28711
Case created: 8th Apr 2014
Last edited: 14th Nov 2015
Inclusion in quiz mode: Included

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