Table 2 Differential diagnosis of meningioma: immunohistochemical findings [16, 19, 20]
From: Extracranial meningiomas concurrently found in the lung and vertebral bone: a case report
Antibody | Meningioma | Leiomyoma | Thymoma (spindle cell type) | Solitary fibrous tumor |
|---|---|---|---|---|
Anti-epithelial membrane antigen | + | – | – | – |
Anti-vimentin | + | + | + | + |
Anti-S100 antigen | Occasionally + | – | – | – |
Anti-alpha smooth muscle actin | – | + | Rarely + | – |
CD34 | – | – | – | + |
Anti-pan-cytokeratin (AE1/AE3) | – | – | + | – |