Histopathology Atlas

CNS - GLIAL TUMORS

 WHO Classification 2016

• Astrocytic tumors:

  • Diffuse astrocytoma

  • Gemistocytic astrocytoma

  • Anaplastic astrocytoma

  • Glioblastoma

    • Giant cell glioblastoma

    • Gliosarcoma

  • Pleomorphic xanthoastrocytoma

  • Pilocytic astrocytoma

• Oligodendroglial tumors:

  • Oligodendroglioma

  • Oligoastrocytoma

  • Anaplastic oligoastrocytoma

• Ependymal tumors:

  • Ependymoma

  • Anaplastic ependymoma

  • Papillary ependymoma

  • Myxopapillary ependymoma

• Neuronal tumors:

  • Central neurocytoma

CNS - NONGLIAL TUMORS

• Embryonal tumors:

  • Medulloblastoma

• Germ cell tumors:

  • Germinoma

• Choroid plexus tumors:

  • Xanthogranuloma of choroid plexus

• Meningiomas:

  • Fibrous meningioma

  • Psammomatous meningioma

  • Secretory meningioma

  • Atypical meningioma

  • Anaplastic meningioma

  • Hemangiopericytoma

• Mesenchymal and other tumors:

  • Hemangioblastoma

  • Chordoma

• Lymphoma:

  • DLBCL, diffuse large B cell lymphoma

• Tumors of the sellar region:

  • Craniopharyngioma, adamantinomatous variant

  • Pituitary adenoma

• Metastatic tumors:

  • Malignant melanoma

  • Small cell carcinoma

  • Lung adenocarcinoma

CNS - NON TUMORS

• Toxoplasmosis

• Cryptococcosis

• Acute bacterial meningitis

• Chronic subdural hematoma

• Colloid cyst

• Vascular malformation

• Cerebral infarction