Spinal subarachnoid hematoma compressing the conus medullaris and associated with neurofibromatosis type 2.
METHODS
Report of a case of subarachnoid hematoma associated with neurofibromatosis type 2 (NF2) in a 10-year-old girl.


OBJECTIVE
To report a rare case of subarachnoid spontaneous hematoma associated with NF2, with no evidence of trauma.


METHODS
Gifu, Japan.


METHODS
The patient presented with severe leg pain. MRI revealed a subarachnoid hematoma at the level of L2 and a spinal cord tumor at the level of T6. The subarachnoid hematoma had low and high heterogeneous signal intensity on the T1-weighted image and low signal intensity on the T2-weighted image, indicating the presence of extracellular methemoglobin. The tumor and hematoma were resected.


RESULTS
Pathological analysis demonstrated that the surgical specimen removed from the area of L2 was a hematoma and the specimen from T6 was a neurinoma. At follow-up 1 year after surgery, the girl remained neurologically asymptomatic.


CONCLUSIONS
This rare case of spinal subarachnoid hematoma was associated with NF2. MRI was useful in establishing the diagnosis.
Department of Orthopaedic Surgery, Gifu University School of Medicine, Tsukasamachi, Gifu City, Gifu, Japan.
T
T
Inoue
K
K
Miyamoto
Y
Y
Kushima
H
H
Kodama
H
H
Nishibori
H
H
Hosoe
K
K
Shimizu
D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006408:Hematoma, Subdural / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D009192:Myelography / Q000379:methods; D009442:Neurilemmoma / Q000473:pathology / Q000601:surgery; D016518:Neurofibromatosis 2 / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D013117:Spinal Cord Compression / Q000175:diagnosis / Q000208:ethnology* / Q000601:surgery; D013346:Subarachnoid Space