Multicentric Calvarial Hemangioma with Dural Invasion: A Case Report.

Calvarial hemangiomas are rare benign vascular tumors originating from the skull bones, most commonly observed in the frontal and parietal bones of the cranium. Although most cases are asymptomatic, they can present with headache, cosmetic deformity, or, rarely, neurological deficit. The lesions are usually solitary; multicentric involvement and dural invasion are exceedingly rare phenomena. Here, we report a 22-year-old male patient who presented with frontal headache and a palpable scalp swelling. Imaging revealed two separate expansile lytic lesions in the right and left frontal bones with no connection between them. Surgical resection was planned. Intraoperatively, the lesion on the left side demonstrated findings highly suggestive of dural invasion, and both lesions were completely resected. This case highlights the rarity of the combination of multicentric involvement with dural invasion in the literature.