There is displacement of the left cavernous internal carotid artery anteriorly and narrowing of the left supraclinoid segment, as well as displacement of the basilar artery posteriorly. Scattered punctate foci of enhancement are seen within the mass.
Soft tissues: The visualized soft tissues of the face and neck are normal.
Visualized paranasal sinuses: Clear.
Mastoid air cells: Clear.
Visualized brain parenchyma: Large calcified mass as described above. No evidence of acute intracranial hemorrhage or vascular territory infarct. Obstructive hydrocephalus with enlargement of the lateral and third ventricles, and effacement of the cerebral aqueduct and fourth ventricle.
Additional comment: None.
1. Large lobulated, calcified mass arising superiorly from the central skull base, as described above. There is expansion and bony remodelling of the sella, left cavernous sinus, and basal subarachnoid cisterns, displacement and compression of the brainstem posteriorly, and obstructive hydrocephalus. Considerations include craniopharyngioma, less likely chordoma, chondrosarcoma, metastasis, giant aneurysm, meningioma, or other sellar/suprasellar calcified lesion.
(Large petroclival chondrosarcoma)
Study description: CT ORBIT SELLA POST FOSSA AND TEMPORAL BONE WITH CONTRAST