Hemorrhage in a colloid cyst is exceedingly rare. Only 15 clinically diagnosed cases of haemorrhagic cysts were reported in the literature and 5 more cases on autopsy. Here we report two rare cases of a haemorrhagic colloid cyst describing the atypical radiological findings, the undertaken surgical procedures and histopathological results 1).
A 45 year old male with hypertension with acute hydrocephalus due to a hemorrhagic colloid cyst in the third ventricle. An external ventricular drain on each side was introduced and he was admitted to the ICU, where brain death was certified. After removal of the cyst through transcortical frontal approach, the diagnosis of colloid cyst with remains of hemolyzed blood was confirmed. CONCLUSION. Bleeding in colloid cysts is exceptional, and can occur in both symptomatic and asymptomatic patients, making it difficult to recognize this complication 2).
case report to describe sudden-onset coma and death due to a hemorrhagic third ventricular colloid cyst occurring after exercising. We review the literature on fatal colloid cysts emphasizing the proposed mechanisms of sudden death and current neurosurgical management in both asymptomatic and symptomatic patients 3).