<prompt> Answer this question truthfullyCould you please provide me with the information in question again so that I can rephrase it? As an AI language model, I do not have access to previous conversations.  <response>: <reason> Brainstem gliomas are commonly found in individuals suffering from Li-Fraumeni syndrome, neurofibromatosis type 1 NF1, nevoid basal cell carcinoma syndrome, tuberous sclerosis and Turcot syndrome. 