childhood brain stem glioma (MONDO_0003869) is an abnormal growth of the cells that comprise the tissues of the brainstem. While the tumor may be histologically benign, it can produce great morbidity due to its location. It presents most commonly in the first two decades of life. Also known as: brain stem glioma of childhood, childhood brainstem glioma, childhood glioma of brain stem, childhood glioma of brainstem, childhood glioma of the brain stem, childhood glioma of the brainstem, paediatric brain stem glioma, paediatric brainstem glioma.