How long can you live with oligodendroglioma?

As a general rule, people with grade II oligodendrogliomas are likely to live for around 12 years following diagnosis. People with grade III oligodendrogliomas are expected to live an average of 3.5 years. Do talk to your doctors. They will be able to give you a more individualized prognosis for your condition.

What is 1p 19q status?

1p19q codeletion stands for the combined loss of the short arm chromosome 1 (i.e. 1p) and the long arm of chromosome 19 (i.e. 19q) and is recognized as a genetic marker predictive of therapeutic response to both chemotherapy and combined chemoradiotherapy and overall longer survival in patients with diffuse gliomas.

Are all oligodendroglioma cancerous?

Oligodendrogliomas can be malignant (cancer) or benign (not cancer). Some of these tumors grow quickly, but many are slower. They may spread to other parts of the central nervous system (brain and spinal cord). They don’t usually spread outside the central nervous system.

Is oligodendroglioma a rare disease?

Oligodendrogliomas are rare. Doctors diagnose them in about 1,200 people in the United States every year. Oligodendrogliomas make up about 4% of all primary brain tumors.

What does IDH mutation mean?

Isocitrate dehydrogenase (IDH) mutation is one of the most critical genomic alterations in lower grade and secondary glioblastoma patient. More than 90% of IDH mutation is located at codon R132 of IDH1 gene.

How is the 1p/19q deletion used to diagnose oligodendroglioma?

Identification of the 1p/19q deletion is useful in differentiating oligodendrogliomas from astrocytomas and assists in the diagnosis and prognosis of both low- and high-grade oligodendrogliomas, as well as in predicting response to therapy. The 1p/19q deletion should not be used alone for diagnosis.

What does 1p 19q mean in cancer?

Combined loss of chromosome arms 1p and 19q (denoted as 1p-/19q-) has proven to be a powerful predictor of chemotherapeutic response and survival in oligodendroglioma s.

What is 1p 19q co-deletion?

Complete deletion of both the short arm of chromosome 1 (1p) and the long arm of chromosome 19 (19q) (1p/19q co-deletion) is the molecular genetic signature of oligodendrogliomas, a subtype of primary brain tumours accounting for approximately ten to fifteen percent of all diffuse gliomas in adults 1,2.

What is 1p 19q co-deletion in glioma?

1p/19q co-deletion as a diagnostic biomarker in glioma. 1p/19q co-deletion is a pathognomonic biomarker that defines a distinct glioma entity 5 and is characteristic of oligodendrogliomas 6,7.