Diffuse astrocytoma, light micrograph. Infiltrating astrocytomas account for almost 80% of adult primary brain tumours. The usual location is cerebral hemispheres and the most commonly affected age group is 4th to 6th decades. The histologic spectrum ranges from diffuse fibrillary astrocytomas (WHO Grade II; shown in this image), through anaplastic astrocytomas (WHO Grade III) to Glioblastoma (WHO Grade IV). WHO Grade I is reserved for Pilocytic astrocytomas. This image of diffuse astrocytoma (WHO Grade II) shows increased number of glial cells (cells with copious eosinophilic cytoplasm), mild nuclear pleomorphism, and a network of delicate astrocytic processes giving a fibrillary appearance to the background. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / WEBPATHOLOGY |
Bildgröße: | 4096 px × 3200 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |