Abstract
Congenital and acquired nystagmus, particularly pendular and jerk nystagmus, see-saw nystagmus and spasmus nutans, may be the presenting sign of a suprasellar mass lesion.¹ The large variety of different suprasellar mass lesions requiring quite different therapeutic measures necessitates exact histological diagnosis for optimal therapeutic strategy planning.² Stereotactic tumor biopsy has become a well-established diagnostic approach, combining minimal surgical trauma with a high degree of diagnostic safety. Particularly in the two most frequent suprasellar mass lesions – craniopharyngiomas and pilocytic astrocytomas – accurately planned stereotactic drainage of tumor cysts combined with radiotherapy and/or stereotactic radiosurgery allows successful decompression and tumor control as well as maximum preservation of visual and endocrinological functions when compared with conventional surgical procedures. 2–11
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