Enterogenous cysts of the central nervous system: A report of eight cases

Endodermal cyst of the third cranial nerve

“…Endodermal cysts occur most often in the subdural space in the anterior spinal cord and usually at the lower cervical and upper thoracic levels [1][2][3]. They have also been called neurenteric and enterogenous.…”

“…They have also been called neurenteric and enterogenous. Intracranial endodermal cysts are extremely rare, occurring on the ventral surface of the brainstem and exceptionally in the supratentorial compartment, mainly in the suprasellar region [1][2][3][4][5].…”

“…It was negative for CK20, CDX-2 and TTF-1. Endodermal cyst was the definitive diagnosis [1,[3][4][5][6][7].…”

“…Endodermal cysts are congenital lesions constituted by a mucus-secreting epithelium similar to that of the gastrointestinal tract/respiratory epithelium [1][2][3]. Intracranial endodermal cysts are rare [1][2][3] and, in these instances, they are found in the midline of the posterior fossa, anterior brainstem, and suprasellar region.…”

“…Intracranial endodermal cysts are rare [1][2][3] and, in these instances, they are found in the midline of the posterior fossa, anterior brainstem, and suprasellar region. Third cranial nerve cysts are an exquisitely rare occurrence with only four cases described so far [4][5][6][7].…”