Conversation: The conversation between human and AI assistant.
[|Human|] Hallo sir my brother is 10yrs old suffering csf intensity well defined lesion in middle posterior fossa posterior to cerebellum it measure about 39/38/19mm.key hole deformity noted at the interior part of cerebellum.thin septa are seen within.mild scalloping of brain surface noted.possibilty of gaint cisterns magna is more likely than arachnoid cyst. Now there is headache so pls kindly guide us
[|AI|]  Hi, Thank you for posting your query. I have noted your brothers symptoms and MRI brain findings.First, I would like to reassure you that MRI findings do not suggest any serious abnormalities and there is no need to worry about that. Giant cistern magma is a normal finding in many people and does not require any treatment. Most likely that is not the cause of headache. The headache could be due to migraine or tension headache. These would respond to medications. I hope my answer helps. Please get back if you have any follow-up queries or if you require any additional information. Wishing you good health, Chat Doctor. Ly/