However, in pediatric cerebellar tumors with morphological features of pilocytic astrocytoma and foci of dysmorphic ganglion cells and KIAA1549-BRAF fusion, Gupta et al. recommended the diagnosis of pilocytic astrocytoma with gangliocytic differentiation instead of ganglioglioma [20]. The gene discussed is KIAA1549; the disease is pilocytic astrocytoma.