Title: A Rare Localization of Cavernous Hemangioma: Mastoid Bone Involvement
Authors: S. KHAIRALLAH, A. KHALLAF, H.OUAZZANI, .I.CHAOUCHE, A.AKAMMAR, N. EL BOUARDI, Y. ALAOUI LAMRANI, M. BOUBBOU, M. MAAROUFI , B.ALAMI
Volume: 9
Issue: 7
Pages: 20-24
Publication Date: 2025/07/28
Abstract:
Cavernous hemangioma is a benign vascular tumor that primarily affects the cervicofacial region, while mastoid involvement remains exceptional. Diagnosis is based on imaging, where CT reveals a well-defined osteolytic lesion, and MRI shows a T2 hyperintensity with progressive and heterogeneous enhancement after gadolinium injection. However, histological confirmation is essential to exclude other differential diagnoses, particularly malignant tumors. We report the case of a 53-year-old woman with a right retroauricular swelling evolving over 10 years, with no associated neurological signs. MRI revealed an expansive osteolytic lesion, with cortical rupture and invasion of the sigmoid sinus, suggesting a cavernous hemangioma of the mastoid. Histopathological examination confirmed the benign nature of the lesion, justifying regular radiological surveillance in the absence of progressive complications.