case_images: PMC6417304_01
case_images: Chest X-ray of metastatic pulmonary meningioma
case_images: AJNS-14-314-g001.jpg
case_images: PMC6417304_01_AJNS-14-314-g001.jpg
case_images: F1
case_images: The following day, a formal CXR was performed [Figure 1], the patient was back to his baseline and the surgery was postponed.
case_images: Computed tomography chest axial image of metastatic pulmonary meningioma
case_images: AJNS-14-314-g002.jpg
case_images: PMC6417304_01_AJNS-14-314-g002.jpg
case_images: F2
case_images: A subsequent chest computed tomography (CT) was arranged and confirmed the presence of a 19-mm left upper lobe nodule and a total of five other smaller bilateral pulmonary nodules ranging from 4 to 13 mm, giving a cannonball appearance [Figures 2 and 3].
case_images: Computed tomography chest coronal image of metastatic pulmonary meningioma
case_images: AJNS-14-314-g003.jpg
case_images: PMC6417304_01_AJNS-14-314-g003.jpg
case_images: F3
case_images: A subsequent chest computed tomography (CT) was arranged and confirmed the presence of a 19-mm left upper lobe nodule and a total of five other smaller bilateral pulmonary nodules ranging from 4 to 13 mm, giving a cannonball appearance [Figures 2 and 3].
case_images: Hematoxylin and eosin stain - Atypical meningioma invading the brain
case_images: AJNS-14-314-g004.jpg
case_images: PMC6417304_01_AJNS-14-314-g004.jpg
case_images: F4
case_images: Histopathology again showed features consistent with atypical WHO Grade II meningioma [Figure 4]; however, although it did not fulfill criteria for anaplastic WHO Grade III meningioma, the higher Ki-67 proliferation index suggested that it may behave more aggressively than the conventional WHO Grade II meningioma.
case_images: Hematoxylin and eosin stain - Metastatic pulmonary meningioma
case_images: AJNS-14-314-g005.jpg
case_images: PMC6417304_01_AJNS-14-314-g005.jpg
case_images: F5
case_images: This confirmed histopathological features consistent with metastatic meningioma [Figure 5].