Department of Radiology, Hospital Sungai Buloh, Malaysia.
Centre for Pathology Diagnostic and Research Laboratories, Faculty of Medicine, Universiti Teknologi MARA, Malaysia.
J Radiol Case Rep. 2021 Jan 31;15(1):1-10. doi: 10.3941/jrcr.v15i1.3898. eCollection 2021 Jan.
A 46-year-old male presented with painless, recurrent bilateral ear discharge and an enlarging right temporal swelling. There were no neurological deficits. Imaging revealed an enhancing, soft tissue mass at the right infratemporal region involving the right temporalis muscle with a small, enhancing intradural component and associated hyperostosis of the greater wing of the right sphenoid bone. Tumour debulking of the right temporalis tumour was performed. Tumour invasion of the right temporalis muscle was noted intraoperatively. Histopathological result was consistent with fibrous meningioma WHO Grade 1 involving surgical resection margins. Follow-up MRI revealed residual right temporal extracranial component. Thus, plans were made for a second stage tumour debulking, however at time of writing, surgery had not been performed. This case highlights the differing appearances of the common meningioma occurring extracranially with elaboration of its differential diagnosis and management.
一位 46 岁男性因无痛性双侧耳溢液和右侧颞部肿胀增大而就诊。无神经功能缺损。影像学显示右侧颞下区增强的软组织肿块，累及右侧颞肌，伴有较小的增强硬脑膜内成分和右侧蝶骨大翼的相关骨增生。行右侧颞肌肿瘤切除术。术中发现肿瘤侵犯右侧颞肌。组织病理学结果符合累及手术切除边缘的纤维型脑膜瘤 WHO 分级 1。随访 MRI 显示右侧颞部颅外残留肿瘤。因此，计划进行第二期肿瘤切除术，但在撰写本文时，手术尚未进行。该病例强调了常见脑膜瘤在颅外的不同表现，详细阐述了其鉴别诊断和治疗。
