Joanna Kołaczkowska Died of Glioblastoma a Year Ago – What Is This Brain Cancer?

July 17, 2025 marks one year since the death of Joanna Kołaczkowska, a beloved Polish cabaret artist from Kabaret Hrabi. She suffered from glioblastoma, one of the most aggressive and difficult-to-treat brain cancers, with poor survival rates. Symptoms of brain tumours include headaches, speech disorders and seizures; effective long-term treatment remains elusive.