Computerised axial tomography and magnetic resonance scanning in the Tolosa-Hunt syndrome.

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Abstract
A 50-year-old Asian male presented with a left sixth nerve palsy, left temporal pain, and rapidly deteriorating visual acuity in the left eye. A high resolution CT scan and magnetic resonance scan showed a left retro-orbital enhancing lesion extending from the lateral margin of the cavernous sinus on to the greater wing of the sphenoid and into the left orbit. Arteriography was normal. On high dose steroid therapy there was total resolution of the lesion. The value of imaging techniques in this condition is discussed.