Presentation
Non-tender left scalp swelling, developed gradually over the last year.
Patient Data
Age: 45 years
Gender: Female
From the case:
Skull vault hemangioma
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/74540/annotated_viewer_json?c=1681142526\u0026lang=us"}



Well-demarcated, expansile osseous lesion involving the left parietal bone with linear "sun-ray/sub-burst" internal striation. Intracranial extension moderate, with a component abutting the adjacent left cerebral hemisphere. Nil other intracranial lesion(s).
Case Discussion
Case findings are consistent with skull vault hemangioma (also known as cavalrial hemangioma).
Learning points:
- skull vault hemangiomas are benign, indolent vascular neoplasms affecting the skull diploë, with frontal and parietal bones commonly implicated
- CT findings consistent with skull vault hemangioma include:
- expansile bone lesion with thin borders
- "sun-ray/burst" pattern of trabecular internal striation radiating from a common center
- management may involve radiotherapy, surgical resection, and/or embolization