Original: In some regions (Berlin, Brandenburg, Saxonia) pancakes are called Eierkuchen, as the term Pfannkuchen refers to Berliners there.
Simplified: They are called Pfannkuchen, although in some areas (Berlin, Brandenburg, Saxonia) that is instead the local name for Berliner, a type of doughnut. Pancakes are called Eierkuchen (meaning "eggcake") there.