Pineoblastoma

**Semantic type:** Neoplastic Process

**Definition:** A poorly differentiated malignant embryonal neoplasm arising from the pineal region. It usually occurs in children and it is characterized by the presence of small immature neuroepithelial cells. It may follow an aggressive clinical course.

**Synonyms:** - PINEOBLASTOMA, MALIGNANT - PNET of Pineal Gland - PNET of Pineal Gland - PNET of the Pineal Gland - PNET of the Pineal Gland - Pineal Gland PNET - Pineal Gland PNET - Pineal Gland Primitive Neuroectodermal Neoplasm - Pineal Gland Primitive Neuroectodermal Neoplasm - Pineal Gland Primitive Neuroectodermal Tumor - Pineal Gland Primitive Neuroectodermal Tumor - Pineal PNET - Pineal PNET - Pineal Primitive Neuroectodermal Neoplasm - Pineal Primitive Neuroectodermal Neoplasm - Pineal Primitive Neuroectodermal Tumor - Pineal Primitive Neuroectodermal Tumor - Pineoblastoma (WHO Grade 4) - Pineoblastoma (WHO Grade IV) - Primitive Neuroectodermal Neoplasm of Pineal Gland - Primitive Neuroectodermal Neoplasm of Pineal Gland - Primitive Neuroectodermal Neoplasm of the Pineal Gland - Primitive Neuroectodermal Neoplasm of the Pineal Gland - Primitive Neuroectodermal Tumor of Pineal Gland - Primitive Neuroectodermal Tumor of Pineal Gland - Primitive Neuroectodermal Tumor of the Pineal Gland - Primitive Neuroectodermal Tumor of the Pineal Gland - pineoblastoma