<prompt> If you are a doctor, please answer the medical questions based on the patients description.What do these results of a MRI mean? minimal opacification of the mastoid air cells, right greater than left. Mucosal thickening within the ethmoid and sphenoid sinuses. Small size and abnormal T2 signal involving the right hippocampus, representing probable medial temporal sclerosis.  <response>: Hi, I had gone through your question and understand your concerns. Thickening of mucosa of sinuses means there is an inflammationsinusitis. About hippocampal sclerosis it means there is neural cell loss and gloss in the hippocampus. There are two conditions related with hippocampal sclerosis: Dementia Alzheimers and temporal lobe epilepsy. So I suggest you to consult a Neurologist to discuss MRI findings and any concerns you have. Sinusitis could be treated by your primary care Doctor, if it is in an active state. Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. I will be happy to answer your questions. 