<prompt> The etiology of anterior ethmoidal neuralgia is:Inferior turbinate pressing on the nasal septumMiddle turbinate pressing on the nasal septumSuperior turbinate pressing on the nasal septumCausing obstruction of sphenoid opening  <response>: Sluders neuralgia or the anterior ethmoidal syndrome is pain around the bridge of the nose radiating into the forehead. It is said to originate from the middle turbinate pa of ethmoid bone pressing on the deted septum. This is a rare cause of headache and also ka contact point headache. 