primary intracranial yolk sac tumor; primary intracranial endodermal sinus tumor

Microscopic pathology: - primitive appearing cells - loosely knit or reticular network, sometimes tubular, papillary or solid patterns - alpha fetoprotein diagnostic

General

primary intracranial germ cell neoplasm yolk sac tumor; endodermal sinus tumor

References

WHO International Histological Classification of Tumors. Histological Typing of Tumours of the Central Nervous System. Kleihues et al. Springer-Verlag 2nd ed. 1993