From the Department of Cardiothoracic Surgery, The Second Affiliated Hospital, Jiaxing University, Jiaxing, Zhejiang Province.
Department of Nuclear Medicine, Changhai Hospital, Navy Medical University.
Clin Nucl Med. 2022 Mar 1;47(3):283-285. doi: 10.1097/RLU.0000000000003923.
Solitary isolated dural metastasis is extremely rare. Distinguishing solitary dural metastasis from meningioma based on radiological findings can be challenging. We describe MRI and FDG PET/CT findings in 2 cases of histologically proved solitary isolated dural metastasis from lung adenocarcinoma. Enhanced brain MRI of the 2 cases showed parafalcine extra-axial, dural-based tumors with hypervascularity mimicking meningioma. Preoperative FDG PET/CT was performed in one case with a known history of lung adenocarcinoma showing intense FDG uptake of the parafalcine tumor. Postoperative FDG PET/CT was performed in the other case showing solitary lung tumor, suggestive of the primary tumor.
孤立性硬膜转移极为罕见。基于影像学表现，将孤立性硬膜转移与脑膜瘤区分开来具有一定挑战性。我们描述了 2 例经组织学证实的来自肺腺癌的孤立性硬膜转移病例的 MRI 和 FDG PET/CT 表现。2 例患者的增强脑 MRI 显示镰旁颅外、硬膜为基础的肿瘤，伴富血管性，类似于脑膜瘤。1 例已知患有肺腺癌的患者进行了术前 FDG PET/CT 检查，显示镰旁肿瘤摄取大量 FDG。另 1 例患者进行了术后 FDG PET/CT 检查，显示孤立性肺肿瘤，提示为原发性肿瘤。
