IDH-1, ATRX AND 1P19Q CO-DELETION IN DIFFUSE GLIOMAS

  • Rabia Javed Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan
  • Noreen Akhtar Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan
  • Usman Hassan Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan
  • Mohammad Azam Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan
  • Asif Loya Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan
  • Mudassir Hussain Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan
  • Maryam Hameed Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan
  • Sumera Butt Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan
  • Sajid Mushtaq Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan
Keywords: ATRX, Diffuse astrocytomas, Glioblastoma, IDH1, Oligodendrogliomas, 1p/19q co-deletion

Abstract

Objective: To stratify diffuse gliomas into subtypes including diffuse astrocytomas, oligodendrogliomas and glioblastomas based on recent molecular updates and assess their frequencies in our local subpopulation.

Study Design: Cross-sectional study.

Place and Duration of Study: Department of Histopathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan, from Jun 2015 to Jul 2017

Methodology: Two hundred and fourteen (n=214) cases of adult diffuse gliomas were evaluated. Clinical and morphological features like age, gender and type of tumor were quantified. Molecular studies including IDH 1 by antibody and PCR, ATRX by antibody and 1p/19q co-deletion by FISH were tested. Gliomas were subcategorised based on WHO 2016 guidelines.

Results: Mean age of presentation was 39 years. Overall n=146/214 (68.2%) of the cases were completely classifiable including Diffuse Astrocytomas, Oligodendrogliomas and Glioblastomas. Out of the glioblastomas (n=81), 67/81(n=82.7%) were IDH Wild type and 14/81 (17.3%) were IDH Mutant.

Conclusion: In this study, glioblastomas are the most frequent gliomas as categorized by current WHO molecular guidelines followed by diffuse astrocytomas. Oligodendrogliomas are the least common.

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Published
2020-04-30
How to Cite
Javed, R., Akhtar, N., Hassan, U., Azam, M., Loya, A., Hussain, M., Hameed, M., Butt, S., & Mushtaq, S. (2020). IDH-1, ATRX AND 1P19Q CO-DELETION IN DIFFUSE GLIOMAS. Pakistan Armed Forces Medical Journal, 70(2), 571-77. Retrieved from https://pafmj.org/index.php/PAFMJ/article/view/4235
Section
Original Articles