EMBR-02. RECURRENT HOMOZYGOUS DELETION OF DROSHA AND MICRODUPLICATION OF PDE4DIP CONTAINING THE ANCESTRAL DUF1220 DOMAIN IN PINEOBLASTOMA

Pineoblastoma is a rare and highly aggressive brain cancer of childhood, histologically belonging to the spectrum of primitive neuroectodermal tumors. Patients with germline mutations in DICER1, a ribonuclease involved in microRNA processing, have increased risk of pineoblastoma, but genetic drivers of sporadic pineoblastoma remain unknown