Colloid Cyst

Abstract

ABSTRACT… Context: Colloid cyst is a rare tumour of the brain that has a good outcome upon surgical removal. Aims: We present the outcome of surgical management of colloid cyst at our setup based on the experience of last ten years. Study Design, Setting and Period: The type of study is a retrospective review of cases of third ventricular colloid cyst operated at the Department of Neurosurgery, Civil Hospital Karachi, Pakistan, from January 2005 to December 2015. Methods and Material: The patient's data including the clinical records, radiographic data, operative and follow up notes were studied. The patient population was divided into groups based upon the size of the cyst. The surgical approaches utilized were the transfrontal transventricular and transcallosal approach. All the patients also underwent a series of tests to determine the function of the somatosensory, motor and memory functions both pre and post operatively and upon follow up. Statistical analysis used: Data was analyzed using SPSS version 23. Mean and standard deviation was used for continuous variables, while frequency and percentage was used for categorical variables. Results: The study population n= 60 patient, n= 36 males and n= 24 females. The size distribution of the cyst was, n= 4 (6.66%) were less than 1.5cm, n=47 (78.33%) were 1.5-3cm and n=9 (15%) were >3cm. Headache was the most common presenting complaint. Papilledema was observed in 71.66% of the patients, while memory changes were observed in 8.33% of the patients. The surgical excision of the cyst was performed in n= 52, patients while ventriculoperitoneal shunt was performed in n= 8 patients. Conclusions: According to the results of our study the transcallosal approach, is a safe technique, in which the neurological damage is limited due to minimal callosotomy and manoeuvring of the fornix.