Abstract
CSF leak-related pneumocephalus is a rare complication of endoscopic transsphenoidal surgery (ETSS) and has been reported in previous studies. We are presenting a rare case of subdural pneumocephalus, unassociated with CSF leak, that developed in the sellar and suprasellar regions. This complication was diagnosed in an adult male 1 week after the removal of a large tumor in the same site via ETSS. The patient presented with a severe headache and visual deterioration. He was diagnosed by a CT scan and managed emergently via ETSS. The headache was relieved immediately after surgery, and the recent visual deterioration was reversed the next day. As far as we have reviewed in the context of complications of ETSS, no previous study has reported such a complication of pneumocephalus unassociated with CSF leak following ETSS. As a conclusion, pneumocephalus can occur with or without CSF leakage as a complication of ETSS, and it may be avoided by a good (water-tight) sealing of the surgical site.
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