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Table 1 Number and ratio of patients who had CT or MRI along with topography of lesions

From: Herpes simplex encephalitis in Iceland 1987–2011

 

Total pts

Ratio

Total number of patients receiving imaging study

30*

100%

Normal CT or MRI

6**

20%

Abnormal CT or MRI

24***

80%

 Temporal lobe****

23

96%

 Other than temporal lobe*****

1

4%

 Lesion in one hemisphere

19

79%

 Lesions in both hemispheres

5

21%

  1. *17 patients had MRI and 13 patients only CT.
  2. **1 patient with MRI and 5 patients with only CT.
  3. ***16 patients with MRI and 8 patients with only CT.
  4. ****Lesions in temporal lobe with or without lesions in other sites of the brain.
  5. *****One patient had no lesions in the temporal lobes, only lesions confined to the occipital lobe and corpus callosum.