DVL1 and anaplastic astrocytoma: Collective results for both markers for DVL1 showed that MSI was detected in 28.6% of pilocytic, 61.5% diffuse, 45.5% anaplastic astrocytomas and in 34.3% of glioblastomas, while LOHs were found in 18.2% of anaplastic and 17.2% of glioblastomas (Figure 1A).