■炎性假瘤包括广泛的非肿瘤性和肿瘤性实体,包括炎性肌纤维母细胞瘤(IMT)。因为它是一种罕见的间叶性肿瘤,病因和病机不明,其临床症状和放射学特征不明显,颅内IMT可误诊为其他轴外肿瘤。这里,我们介绍一例颅内IMT疑为脑脓肿.
■在这种情况下,一名73岁的妇女出现头痛,恶心,和眩晕.脑计算机断层扫描(CT)和磁共振成像显示,左桥小脑角上有4×3cm大小的椭圆形边缘增强病变。考虑到患者的中耳炎病史和CT表现,我们假设该病变是慢性脑脓肿。最初的毛刺孔引流手术没有成功,因为没有脓肿,导致第二次根治性切除手术。组织病理学和免疫组织化学分析最终揭示了颅内IMT的最终诊断。
■颅内IMT是一种发病机制不明的罕见疾病。诊断主要取决于组织病理学和免疫组织化学分析。正如在我们的案例中观察到的,这种疾病可能被误认为是脑膜瘤,孤立性纤维瘤,或慢性脓肿,由于其罕见的发生。
UNASSIGNED: Inflammatory pseudotumor encompasses a broad range of non-neoplastic and neoplastic entities, including inflammatory myofibroblastic tumors (IMTs). Because it is a rare mesenchymal tumor of unknown etiology and pathogenesis, and its clinical symptoms and radiologic features are not distinctive, intracranial IMT could be misdiagnosed as other extra-axial tumors. Here, we present a
case of intracranial IMT suspected to be a brain abscess.
UNASSIGNED: In this
case, a 73-year-old woman presented headaches, nausea, and vertigo. Brain computed tomography (CT) and magnetic resonance imaging showed 4 × 3 cm sized oval rim-enhanced lesion on the left cerebellopontine angle. Considering the patient\'s history of otitis media and CT findings, we hypothesized that this lesion was a chronic brain abscess. The initial burr hole drain surgery was unsuccessful because there was no abscess, leading to a second radical excision surgery. Histopathological and immunohistochemical analyses eventually revealed a final diagnosis of intracranial IMT.
UNASSIGNED: Intracranial IMT is a rare disease with unknown pathogenesis. Diagnosis primarily depends on histopathological and immunohistochemistry analyses. As observed in our
case, this disease may be mistaken for meningiomas, solitary fibrous tumors, or chronic abscesses due to its rare occurrence.