Hourglass cystic schwannoma of the trochlear nerve
Bartalena, T.; Leoni, C.; Trossello, M.Pastore.; Rinaldi, M.Francesca.; Cianfoni, A.; Caprara, G.; Sverzellati, N.; De Filippo, M.; Padovani, R.
Acta Bio-Medica Atenei Parmensis 81(2): 147-150
2010
ISSN/ISBN: 0392-4203 PMID: 21305881 Document Number: 638693
Cranial nerves' schwannomas most commonly arise from the vestibular nerve. Involvement of other cranial nerves, in absence of neurofibromatosis, is extremely rare. A case of a pathology proven trochlear nerve schwannoma, with internal cystic components, in a patient with isolated right superior oblique muscle palsy, is described. Only 67 cases of such entity have been previously reported in the literature.