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Все посты канала →Ans. is 'd' i.e., CSF Rhinorrhoea [ Ref: Logan Turner 10(
h
/e p.
28, Dhingra 5
th
/e p. 179]
Detection of site of CSF leak in CSF Rhinorrhoea
1. HRCT : - HRCT with or without godolinium is the most helpful study
for identifying the site of leak, i.e., investigation of choice.
2. MRI : - MRI with heavy T2 weighted image may highlight CSF
sufficiently to show the leak.
3. CT cisternography : - CT scan after injection of contrast dye is
effective in patients with an active leak.
4. Radioisotope cisternography : - Radioisotope injected intrathecally
and measured.
5. Fluorescin dye : - Intrathecal fluorescin with endoscopic
visualization.