Intrinsic brainstem schwannoma - A rare clinical entity and a histological enigma.
Intraparenchymal schwannomas arising in the brainstem are very rare, and only eight cases have been reported in literature till now. We report an intraparenchymal brainstem schwannoma presenting with the classical clinical presentation of an intrinsic brainstem lesion, and discuss its clinicoradiological characteristics and histological origins. We highlight the importance of an intraoperative frozen section diagnosis in such cases. Intraoperative tissue diagnosis significantly may alter the surgical strategy, which should be aimed at near total intracapsular decompression of the schwannoma.
Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
Anil Kumar
AK
Sharma
Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
Amey R
AR
Savardekar
Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
B N
BN
Nandeesh
Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
A
A
Arivazhagan
Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
Malla Bhaskar
MB
Rao
Intraparenchymal schwannoma; intrinsic brainstem schwannoma; pathogenesis of schwannoma