Fig. 4From: Lumbar clear cell meningioma mimicking schwannoma 7 years after resection of the same type of intracranial tumor: a case reportTumor exhibiting sheeting architecture containing round to polygonal cells with clear cytoplasm and many small clumps of collagen fibers histologically. Whorl formation and psammoma bodies were poorly formed (H and E stain) (a). Immunohistochemistry revealed the loss of nuclear SMARCE1 expression in the tumor cells (SMARCE1) (b)Back to article page