Fig. 3
From: Solitary pulmonary metastasis after meningioma surgery of the head: a case report
Pathological findings of the pulmonary metastasis of meningioma. a The boundary between the tumor and surrounding tissue was clear (hematoxylin–eosin staining, original magnification 20×). b Short spindle-shaped tumor cells with a slightly acidophilic cytoplasm and exhibiting complex proliferation were detected (hematoxylin–eosin staining, original magnification 400×)