What should be done about bilateral frontotemporal parietal subarachnoid space widening?

Patient's question:

My child has only been born for less than two months and has developed bilateral subarachnoid space widening in the frontal and temporal regions, as well as bilateral widened and rounded lateral ventricles. There are no other issues for now. How is this condition caused? What is the pathology behind it? How could my baby have gotten this disease? What should I do now? What kind of assistance is needed: How should a child with bilateral subarachnoid space widening in the frontal and temporal regions be treated when they are less than two months old?

Doctor's answer:

During early childhood, symmetrical widening of the subarachnoid space (extra-axial space) in the frontal or frontopolar lobe within a certain range can be a physiological phenomenon. From 2 to 12 months of age, the extra-axial space (subarachnoid space) in infants can be significantly widened, with the most pronounced widening occurring between 2 and 6 months. By the age of 2, most children's periventricular spaces and sulci have disappeared, leaving only a relatively narrow longitudinal fissure. Some scholars believe that the reason for the significant widening of the extra-axial space is due to a temporary imbalance in cerebrospinal fluid production and metabolism during growth and development, as well as the faster growth of the skull compared to brain tissue in the first few months after birth. It is recommended to observe and treat with careful attention.

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