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Pilomyxoid xanthoastrocytoma (PXA) : MRI
History– A 14 yr female c/o headache since 2 months. 2 episodes of seizures in last one weekFindings- An ill-defined soild-cystic mass is seen in the left parietal lobe with surrounding mild to moderate edema. The cystic component shows restriction of diffusion and rim enhancement. The solid component shows avid postcontrast enhancementFinal Diagnosis- Pilomyxoid xanthoastrocytoma (PXA)Golden PointDDs of cyst with mural nodule-Pilocytic astrocytoma, PXA, ganglioglioma, hemangioblastoma, craniopharyngioma Famous Radiology Blog by Dr Sumer Sethi www.sumersethi.com (Source: Sumer's Radiology Site)
Source: Sumer's Radiology Site - February 9, 2022 Category: Radiology Authors: Sumer Sethi Source Type: blogs

Pilomyxoid astrocytoma
Angiocentricity, a hallmark of pilomyxoid astroctyoma, is demonstrated hereAlthough thought to be related to pilocytic astrocytoma, full characterization of pilomyxoid astrocytoma has yet to yield a definitive WHO grade for these tumors (although the prior edition of the WHO book pegged this tumor as grade II). Pilomyxoid astrocytomas differ from pilocytic astrocytomas in that they tend not to be biphasic or harbor Rosenthal fibers. (Source: neuropathology blog)
Source: neuropathology blog - May 2, 2018 Category: Radiology Tags: neoplasms Source Type: blogs