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Vol.60 No.1 contents | Japanese/English |
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- Case Report -
A Case of Pulmonary Metastases from Intracranial Atypical Meningioma
Masaki Kimura1, Kouichi Kamiyama1, Yuichi Dai21Department of Thoracic Surgery, 2Department of Pathology, Tsukuba Memorial Hospital, Japan
Background. Meningioma is a common primary intracranial neoplasm. Although generally regarded as a benign tumor, meningioma rarely but occasionally causes extracranial metastases. Case. A 54-year-old man visited our hospital for the further examination of a left pulmonary nodule on chest X-ray taken during mass screening. He had been treated with craniotomy and adjuvant radiotherapy for atypical meningioma at another hospital 8 years earlier. Thereafter, he had undergone repeated excision of recurrent subcutaneous tumor of the head 3 times. Chest computed tomography showed 2 well-defined nodules: a 15-mm nodule in left S9 and a 5-mm nodule in right S1. Thoracoscopic surgical resection was performed for the nodule in the left lung, and the diagnosis of pulmonary metastasis from intracranial atypical meningioma was confirmed by histological and immunohistochemical examinations. Conclusion. Metastatic meningioma should be considered in the differential diagnosis of chest abnormal shadows in patients with a history of intracranial tumor.
key words: Meningioma, Pulmonary metastasis, MIB-1 labeling index
Received: March 1, 2019
Accepted: October 28, 2019
JJLC 60 (1): 38-42, 2020
