Intrasellar arachnoid cyst: A case report and review of the literature.
BACKGROUND
Arachnoid cysts (ACs) are frequently found on intracranial imaging studies but intrasellar arachnoid cysts are rarely encountered.


METHODS
We present a 49-year old patient who had headaches for 6 months and cystic sellar mass was found in his cranial imaging. We operated him by transnasal transsphenoidal route. Our intraoperative diagnosis was an arachnoid cyst and pathologic studies verified our observation. He did well postoperatively and after a 1year follow-up he was left free from future follow-ups.


CONCLUSIONS
As common cystic lesions occupying the sellar region can simulate ACs both clinically and radiologically, neurosurgeon can fail to include ACs in making the initial diagnosis preoperatively.


CONCLUSIONS
Although a rare entity, arachnoid cysts should be considered in the differential diagnosis of sellar region.
Acıbadem University School of Medicine Department of Neurosurgery, Istanbul, Turkey. Electronic address: mustafaguduk@gmail.com.
Mustafa
M
Güdük
Acıbadem University School of Medicine Department of Neurosurgery, Istanbul, Turkey.
Murat
M
HamitAytar
Acıbadem University School of Medicine Department of Pathology, Istanbul, Turkey.
Aydın
A
Sav
Acıbadem University School of Medicine Department of Neurosurgery, Istanbul, Turkey.
Zafer
Z
Berkman
Arachnoid cyst; Case report; Sellar arachnoid cyst; Sellar cysts