Occipital plagiocephaly - unilateral

Case contributed by Dr Hidayatullah Hamidi

Presentation

Abnormal shape of the head.

Patient Data

Age: 2 years
Gender: Male

Trapezoid shape of the head is noted.

Atrophic changes are noted in bilateral fronto-temporal lobes.

Case Discussion

The differential diagnosis for unilateral occipital plagiocephaly can be positional plagiocephaly (treated without surgery) and unilateral lambdoid synostosis (treated surgically).

In positional plagiocephaly:

  • the head is parallelogram shaped when viewed from above
  • the ipsilateral ear is displaced anteriorly
  • no bony ridge is seen over lambdoid suture
  • unilateral occipitoparietal flattening is usually seen though it can be bilateral
  • when viewed posteriorly the skull base is horizontal and no occipitomastoid bulge can be seen

In lambdoid synostosis:

  • the head is trapezoid shaped when viewed from above
  • the ipsilateral ear is displaced posteriorly and inferiorly
  • the bony ridge is palpable over the closed lambdoid suture
  • unilateral occipitoparietal flattening is seen posteriorly
  • when viewed posteriorly there is an ipsilateral occipitomastoid bulge and the skull base appears tilted
PlayAdd to Share

Case information

rID: 53681
Case created: 30th May 2017
Last edited: 11th Jun 2017
System: Head & Neck
Inclusion in quiz mode: Included

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.