Spinal Subdural Haematoma.
BACKGROUND
Spinal Subdural hematoma is a rare cause of radiculopathy and spinal cord compression syndromes. It's early diagnosis is essential. Chronological appearance of these bleeds vary on MRI.


METHODS
A 56 year old man presented with progressive left lower limb radiculopathy and paraesthesias with claudication of three days duration. MRI revealed a subdural space occupying lesion compressing the cauda equina at L5-S1 level producing a 'Y' shaped dural sac (Y sign), which was hyperintense on T1W imaging and hypointense to cord on T2W image. The STIR sequence showed hyperintensity to cord. There was no history of bleeding diathesis. The patient underwent decompressive durotomy and biopsy which confirmed the diagnosis.


CONCLUSIONS
Spinal subdural hematoma may present with rapidly progressive neurological symptoms. MRI is the investigation of choice. The knowledge of MRI appearance with respect to the chronological stage of the bleed is essential to avoid diagnostic and hence surgical dilemma.
Department of Orthopaedics, Wockhardt Hospital, South Mumbai, India.
Kothari
K
Manish K
Department of Orthopaedics, Wockhardt Hospital, South Mumbai, India.
Shah Kunal
SK
Chandrakant
Department of Orthopaedics, Wockhardt Hospital, South Mumbai, India.
Nene
N
Abhay M
MRI scan; Spinal subdural haematoma; extramedullary spinal cord compression