Surgical Management of Colloid
Cyst of the Third Ventricle—A
Study of 105 Cases
Ketan I. Desai, M.Ch., Trimurti D. Nadkarni, M.Ch., Dattatraya P. Muzumdar, M.Ch., and
Atul H. Goel, M.Ch.
Department of Neurosurgery, King Edward Memorial Hospital, Seth G. S. Medical College,
Parel, Mumbai, India
Desai KI, Nadkarni DP, Muzumdar DP, Goel AH. Surgical manage-
ment of colloid cyst of the third ventricle—a study of 105 cases.
Surg Neurol 2002;57:295–304.
Colloid cyst of the third ventricle is a relatively rare
intracranial tumor. It generates tremendous interest for
the neurosurgeon because of its benign nature, deep lo-
cation, and an excellent prognosis when diagnosed early
A retrospective analysis of 105 cases of third ventricle
colloid cyst treated between 1967 to 1998 was conducted.
The clinical presentation, radiological findings, different
surgical approaches, and outcome were analyzed. The
proaches were predominantly used. Memory and psycho-
logical assessment were carried out both pre- and post-
operatively. A computerized tomography (CT) scan was
performed during follow-up.
The male to female ratio was 1.5:1. The age of the patients
ranged from 10 to 68 years. Headache was the most
common symptom. Papilledema and short-term memory
disturbances were the most common signs. In 5 patients
the colloid cyst was detected incidentally.
Surgery for colloid cyst was performed in 93 patients.
proaches were performed in 62 and 30 patients, respec-
tively. In 1 patient the cyst was excised through the
subfrontal lamina terminalis approach. Total excision
was achieved in 90 patients, while partial cyst excision
was done in three patients. Moderate to severe lateral
ventricular enlargement was found in 76 patients at pre-
sentation. A ventriculoperitoneal shunt was the only sur-
gical procedure performed in 7 patients. In 16 patients
colloid cyst excision was conducted afte