anaplasti olygodendroglioma

Doctor's Information

Name : Hamid Reza
Family : Haghighatkhah
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Resident : Masoome Raoufi

Patient's Information

Gender : Male
Age : 52

Case Section

Head & Neck Imaging

Clinical Summary

52 Y/O man.

Images

Imaging Procedures and Findings

MR: ON axial T2 and T1 images there is a mass lesion in right frontal lobe with extention in to the convexity cortex.

Discussion

Oligodendroglioma accounts for 5% to 18% of all gliomas (about 4% of all intracranial neoplasms). It is more common in adults, with a peak age of 30 to 50 years old. Children are affected in about 6% of cases. The tumor is supratentorial in 85% of cases and most commonly (50% to 65% of the time) located in the frontal lobe. The tumor usually grows slowly and, on microscopy, shows calcification in 100% of cases, with hemorrhage and cysts occurring in about 20% of cases.On MRI ,tumors appear heterogenouse on both T1WI and T2WI because of intratumoral cycts and calcifications.Anaplastic olygodendrogliomas on histology demonstrate greater cellular atypia ,more extensive tumor vascularity and necrosis.The prognose is less favorable.