A 26-year-old man was referred to our department with recurrent episodes of loss of
consciousness. The radiological evaluation of the patient's cranium showed a third
ventricular colloid cyst with only a slight degree of obstructive hydrocephalus. The
complete, en-bloc removal of the cyst was achieved by a frameless neuronavigation-guided
endoscopic resection technique. The patient had an uneventful post-operative period
and was discharged home on the fourth post-operative day without any neurological
or psychological deficit. The surgical technique and pertinent literature are discussed
with emphasis on factors that contribute to our successful total en-bloc removal of
the third ventricular colloid cyst.
frameless neuronavigation - endoscopy - surgical technique - colloid cyst
