Fig. 2
From: Post-traumatic tension pneumocephalus and cystic angiomatosis of the skull: case report
A CT scan axial cut, bone window, demonstrating, extradural pnemocephalus (red arrow), pneumatocele (green arrow), and lytic skull defects of the occipital bone. B Sagittal MRI T1 weighted, demonstrating huge parietal and occipital pneumocephalus (red arrow) communicating with the pneumatocele (green arrow). Intact dura is demonstrated (blue arrow) and soft tissue trabeculae (yellow arrow) is identified communicating bone defects with the scalp. C MRV study showing multiple branches and net of vessels draining blood from the mass bulge (pneumatocele) toward the superior sinuses. D 3D CT scan of the skull, posterior view showing multiple lytic lesions of the occipital, parietal and left squamous temporal bones