Open AccessStereotactic Radiosurgery in Two Cases of Presumed Fourth Cranial Nerve Schwannoma
Author(s) -
Evis Petrela,
Charles J. Hodge,
Seung S. Hahn,
Chung T. Chung,
Luis J. Mejico
Publication year - 2009
Publication title -
journal of neuro-ophthalmology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.586
H-Index - 55
eISSN - 1536-5166
pISSN - 1070-8022
DOI - 10.1097/wno.0b013e31818f6463
Subject(s) - radiosurgery , schwannoma , medicine , cranial nerve palsy , cranial nerves , cranial nerve disease , surgery , radiology , radiation therapy , eye disease
A 47-year-old woman and a 45-year-old man with gradually progressive fourth cranial nerve palsy underwent stereotactic radiosurgery for presumed fourth cranial nerve schwannomas with the gamma knife at a marginal tumor dose of 14 and 13 Gy, respectively. In one patient, the ocular misalignment disappeared; in the other patient, it stabilized. MRI showed shrinkage of the tumors. These patients represent the second and third reported cases of presumed fourth cranial nerve schwannoma treated with radiosurgery and the first cases with substantial follow-up information.