Spinal subarachnoid hematoma compressing the conus medullaris and associated with neurofibromatosis type 2
T Inoue1, K Miyamoto, Y Kushima
1Department of Orthopaedic Surgery, Gifu University School of Medicine, Tsukasamachi, Gifu City, Gifu, Japan.
Study Design:
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.
Setting:
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.
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