photomicrograph of an astrocytoma, a type of brain tumor, under the microscope.

photomicrograph astrocytoma brain tumor microscope cellular structure medical condition microscopy histology glioma tissue examination disease diagnosis scientific research histopathology neural glial cells pathology cancer microscopic view healthcare malignant imaging abnormalities health visualization detail anatomical study biology science micrograph light sample slide biopsy hematoxylin eosin staining