<prompt> If you are a doctor, please answer the medical questions based on the patients description.I had another MRI Brain Scan...history is meniangioma...my last Mri of the brain was in 2014...report is this: there is increase in size of left CP angle extra-axial mass which now measures 1.3 x 1 cm in the axial plane which prior measured 0.9 x 0.7 cm and 1.6 cm in sagittal plane which prior measured 7 mm...There is no significant mass effect related to this mass. Should I be worried about this?  <response>: HI and Welcome to Ask A Doctor service. I have read your question and here is my advice. The increase in the size though not very much is a little concerning however most of the meningiomas90 are benign tumor. They are not aggressive. The good point is thats there is no mass effect not putting g pressure on the brain and if you do not have symptoms. .then we can just wait and observe as the growth is very slow .but serial MRIs are necessary to keep eye on size. If any time its symptomatic, it can be removed surgically. Keep in touch with your neurosurgeon. Hopes I have answered your question. I will be glad to answer any further question about this. 