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In page Astroblastoma:

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Researchers have also confirmed astroblastoma distinct from oligodendroglioma, which are invasive nodular cysts that may resemble a "bubbly" interior. Pleomorphic xanthoastrocytoma, dysembryoplastic neuroepithelial tumors, juvenile pilocytic astrocytoma, and hemangioblastoma are well-established, pediatric brain cancer tumors that are often confused with astroblastoma patients. However, further histology has confirmed that special structures and characteristics are unique to astroblastoma. Advances in the 21st century of histology have justified proper diagnosis, eliminating inconsistency that plagued this tumor for several decades.[citation needed]