Department of Pathology, Kocaeli University, Kocaeli, Turkey.
Department of Radiology, Kocaeli University, Kocaeli, Turkey.
Br J Neurosurg. 2023 Jun;37(3):319-321. doi: 10.1080/02688697.2019.1650251. Epub 2019 Aug 5.
Primary intraosseous meningioma (PIM) is a rare subtype of primary extradural meningiomas. These rare ectopic meningiomas have been usually reported in the frontotemporal regions of the calvarium, orbits, and anterior cranial fossa. We report a case with bilateral tumors located in frontoparietal regions of calvarium. Our initial diagnosis was fibrous dysplasia but the lesions were seen to expand under follow-up. One was resected and the histopathological diagnosis was PIM. This is the second reported case of multiple PIM.
原发性骨内脑膜瘤（PIM）是一种罕见的原发性硬脑膜外脑膜瘤亚型。这些罕见的异位脑膜瘤通常发生在颅盖的额颞部、眼眶和前颅窝。我们报告了一例位于颅盖额顶区的双侧肿瘤。我们最初的诊断是纤维结构不良，但在随访中发现病变扩大。一个肿瘤被切除，组织病理学诊断为 PIM。这是第二例多发性 PIM 的报道。
