Type 1-Primary Cutaneous Meningioma of the Scalp

Abstract

Type 1-primary cutaneous meningioma is a rare and often clinically unsuspected lesion of the scalp, forehead or paravertebral region which occurs at birth or during childhood. The pathogenesis of these lesions still remains uncertain. Several authors have emphasized that type 1-cutaneous meningiomas are not real tumors but sequestrated meningoceles or heterotopic meningeal nodules of the skin. Nevertheless, the search for an intracranial or intravertebral connection should be carried out. We describe the clinical and pathological features of a congenital type 1-meningioma of the vertex. No cranial defect or intracranial tumor was found. However, the cutaneous lesion was directly linked to a large cranial vein. The purpose of this study was to illustrate this rare lesion and to indicate the possible surgical risks and the pathological characteristics.