Table 1 Distibution of the different neurological diseases in the 343 FBs from the study, with a definitive diagnosis
Category/Diseases | N = 343 (%) |
|---|---|
Myelopathies | 222/343 (64.7%) |
IVDH | 156/222 (70.3%), representing 161 IV sites |
Cervical IVDH | 64/161 (39.8%) |
C3-C4 | 37/64 (57.8%) |
C4-C5 | 12/64 (18.8%) |
C2-C3 | 11/64 (17.2%) |
C5-C6 | 4/64 (6.2%) |
Non-cervical IVDH | 97/161 (60.2%) |
T13-L1 | 20/97 (20.6%) |
L2-L3 | 17/97 (17.5%) |
L3-L4 | 16/97 (16.5%) |
L1-L2 | 14/97 (14.5%) |
T12-T13 | 10/97 (10.3%) |
L4-L5 | 10/97 (10.3%) |
Other locations | 10/97 (10.3%) |
Spinal arachnoid diverticulum | 25/222 (11.3%) |
Thoracic | 22/25 (88%) |
Cervical | 3/25 (12%) |
Compressive vertebral malformations | 19/222 (8.6%) |
Hemivertebra + kyphosis | 17/19 (89.5%) |
Other CVM | 2/19 (10.5%) |
Spinal neoplasia | 7/222 (3.1%) |
Syringohydromyelia | 6/222 (2.7%) |
Other myelopathies | 9/222 (4%) |
Encephalopathies | 68/343 (19.8%) |
Brain neoplasia | 25/68 (36.8%) |
Glioma | 17/25 (68%) |
Pituitary neoplasia | 5/25 (20%) |
Other neoplasias | 3/25 (12%) |
MUO/optic neuritis | 17/68 (25%) |
Idiopathic epilepsy | 9/68 (13.2%) |
Infectious encephalitis | 8/68 (11.8%) |
Metabolic | 3/68 (4.4%) |
Other encephalopathies | 6/68 (8.8%) |
Unclassified neurological conditions | 32/343 (9.3%) |
Congenital deafness | 29/32 (90.6%) |
Bilateral | 21/29 (72.4%) |
Unilateral | 8/29 (27.6%) |
Other unclassified conditions | 3/32 (9.4%) |
PNS/muscle disorders | 21/343 (6.1%) |
Otitis interna/PVS | 14/21 (66.7%) |
Myopathies | 3/21 (14.3%) |
Idiopathic vestibular syndrome | 2/21 (9.5%) |
Others PNS/muscle disorders | 2/21 (9.5%) |