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.
Inoue
T
T
Department of Orthopaedic Surgery, Gifu University School of Medicine, Tsukasamachi, Gifu City, Gifu, Japan.
Miyamoto
K
K
Kushima
Y
Y
Kodama
H
H
Nishibori
H
H
Hosoe
H
H
Shimizu
K
K
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