Inflammation of the trochlea/superior-oblique muscle complex may mimic supratrochlear neuralgia with the pain of the medial upper orbit extending a short distance to the forehead 1)
1)
Pareja JA, Pareja J, Yanguela J. Nummular headache, trochleitis, supraorbital neuralgia, and other epicranial headaches and neuralgias: the epicranias. Journal of Headache and Pain. 2003; 4:125–131