Pinealoma

Neoplasms which originate from pineal parenchymal cells that tend to enlarge the gland and be locally invasive. The two major forms are pineocytoma and the more malignant pineoblastoma. Pineocytomas have moderate cellularity and tend to form rosette patterns. Pineoblastomas are highly cellular tumors containing small, poorly differentiated cells. These tumors occasionally seed the neuroaxis or cause obstructive HYDROCEPHALUS or Parinaud's syndrome. GERMINOMA; CARCINOMA, EMBRYONAL; GLIOMA; and other neoplasms may arise in the pineal region with germinoma being the most common pineal region tumor. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2064; Adams et al., Principles of Neurology, 6th ed, p670)

Also Known As:

Pineoblastoma; Pineocytoma; Mixed Pineocytoma-Pineoblastoma; Pineal Gland Tumor; Pineal Parenchymal Tumors; Pineal Tumors; Mixed Pineocytoma Pineoblastoma; Mixed Pineocytoma-Pineoblastomas; Neoplasm, Pineal; Pineal Gland Tumors; Pineal Neoplasm; Pineal Parenchymal Tumor; Pineal Tumor; Pinealocytomas; Pinealomas; Pineoblastomas; Pineocytoma-Pineoblastoma, Mixed; Pineocytoma-Pineoblastomas, Mixed; Pineocytomas; Tumor, Pineal; Tumor, Pineal Gland; Tumor, Pineal Parenchymal; Tumors, Pineal; Tumors, Pineal Gland; Tumors, Pineal Parenchymal; Neoplasms, Pineal; Pineal Neoplasms; Pinealocytoma

Neoplasms: 1324753
- Neoplasms by Site: 4
  - Nervous System Neoplasms: 235
    - Central Nervous System Neoplasms: 818
      - Brain Neoplasms: 25077
        Pinealoma: 334
- Neoplasms by Histologic Type: 2
  - Germ Cell and Embryonal Neoplasms: 4454
    - Neuroectodermal Tumors: 217
      - Neuroepithelial Neoplasms: 412
        Pinealoma: 334
  - Glandular and Epithelial Neoplasms: 439
    - Neuroepithelial Neoplasms: 412
      - Pinealoma: 334
  - Nerve Tissue Neoplasms: 1
    - Neuroectodermal Tumors: 217
      - Neuroepithelial Neoplasms: 412
        Pinealoma: 334
Nervous System Diseases: 14178
- Central Nervous System Diseases: 4213
  - Brain Diseases: 15694
    - Brain Neoplasms: 25077
      - Pinealoma: 334
- Nervous System Neoplasms: 235
  - Central Nervous System Neoplasms: 818
    - Brain Neoplasms: 25077
      - Pinealoma: 334

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