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Benign enlargement of subarachnoid spaces: a cause of subdural haemorrhage in toddlers
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  1. Asthik Biswas1,
  2. Farha Furruqh1,
  3. Suresh Thirunavukarasu2,
  4. Sankar Neelakantan1
  1. 1Department of Radiology, St Johns Medical College Hospital, Bangalore, Karnataka, India
  2. 2Department of Neurology, Indira Gandhi Government General Hospital and Post Graduate Institute, Puducherry, Puducherry, India
  1. Correspondence to Dr Suresh Thirunavukarasu, sureshy2001{at}rediffmail.com

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A 7-month-old male child (patient 1) was referred for a CT of the brain for evaluation of macrocephaly. His head circumference was 48 cm (>95th centile). He was otherwise normal and his developmental milestones were normal for age. The CT showed enlarged subarachnoid spaces in the frontal and temporal lobes (figure 1). A chronic subdural haemorrhage (SDH) was noted in the right frontal lobe (figure 1).

Figure 1

(A) Axial section of brain CT showing widened subarachnoid spaces in the frontal and temporal lobes (white arrows). (B) Axial section of brain CT showing a chronic subdural haemorrhage in the right frontal lobe extending into the interhemispheric fissure (red arrow). Also seen are widened subarachnoid spaces in the temporal lobes (white arrows).

A 2-month-old male child (patient 2) was referred for CT of the brain following a fall. …

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