From left to right: an unusual presentation of Tolosa-Hunt syndrome with bilateral eye involvement.

Here we discuss a presentation of Tolosa-Hunt syndrome (THS) in a 44-year-old female with new right-eye ptosis, ophthalmoplegia and headache. Four days prior, she had almost identical ptosis and ophthalmoplegia in her left eye, which resolved. Cavernous sinus inflammation and symptom improvement with glucocorticoid treatment indicated THS with bilateral eye involvement, a presentation which may be undervalued by the current THS classification.