Previous history of motor vehicle trauma
Loading Stack -
0 images remaining
Oval shape lucency with smooth margins at parietal bone is detected in scanogram.
A lytic calvarial lesion with scalloped edges at right parietal bone is visible with extracranial brain herniation. A large porencephalic cyst at right frontoparietal lobe is detected. Right sided unilateral ventricular dilatation is seen.
Based on previous history of trauma and above mentioned findings, leptomeningeal cyst or growing fracture should be considered.
CT scan is the modality of choice for the evaluation of leptomeningeal cyst. It consists of a lytic calvarial lesion with scalloped edges, in which encephalomalacia invaginates. The following features may also be present 1,2:
- extracranial brain herniation
- unilateral ventricular dilatation
- porencephalic cyst
- 1.Xue-song Liu, Chao You, Ma Lu, Jia-gang Liu. Growing skull fracture stages and treatment strategy: Clinical article. (2012) Journal of Neurosurgery: Pediatrics. 9 (6): 670. doi:10.3171/2012.2.PEDS11538
- 2.Arora Ankur, Puri Sunil Kumar, Upreti Lalendra. Brain Imaging: Case Review Series. (2011) ISBN: 9789350253892