Localised sensory Sx of the outer thigh caused by compression of the LFCN.

It is a mononeuropathy (only affects a single nerve)

PC

In the LFCN distribution (upper outer thigh):

• Dysaesthesia (abnormal sensations)
• Anaesthesia (loss of sensation)

Patients may describe:

• Burning
• Numbness
• Pins and needles
• Cold sensation

Aggrevated by walking or standing for a long duration, improve when sitting down

On examination:

• Localised hair loss
• Sx worse (can be reproduced) with extension of hip on affected side

Investigations

To rule out other causes e.g. nerve root compression or pelvic tumours