Hemorrhagic colloid cyst

Atypical haemorrhagic colloid cyst: 2 case reports surgical management and review of literature

“…Diencephalic ependymoma, invagination of neuroepithelium of the ventricle, or the respiratory epithelium of endodermal origin are the other etiological possibilities [ 4 ]. They constitute approximately 0.5–1.0% of primary brain tumors and 15–20% of all intraventricular masses [ 1 , 5 , 10 ]. Most found in the 3rd and 4th decades that peaked at around the age of 40 and distributed evenly among males and females with few recorded family cases.…”

“…Haemorrhagic ‘cyst apoplexy’ colloid cysts are rare and the cause of hemorrhage is not yet understood [ 1 , 10 ]. Just 15 clinically diagnosed cases of hemorrhagic cysts were reported in the literature, and 5 more cases on autopsy were reported [ 11 ].…”

“…The cyst wall consists of a cuboidal, columnar, or pseudostratified epithelial lining with interspersed goblet cells of the mucosa [ 4 , 10 , 13 ]. Intracystic haemorrhage may occasionally lead to xanthogranulomatous inflammatory changes within the cyst resulting in focal thickening of the cyst wall and adhesion to surrounding structures [ 3 , 4 , 16 ].…”