High Carbonic Anhydrase-9 Expression Identifies a Subset of 1p/19q Co-Deletion and Favorable Prognosis in Oligodendroglioma

High expression of CA-9, a marker for hypoxia and acidosis, is associated with favorable prognosis in oligodendroglioma. In addition, it may serve as a simple screening test for 1p/19q co-deletion if validated in larger cohorts.