Drain the oranges, reserving the syrup (if you'd like to use it as a topping). Chop the orange segments.
Beat the egg white and salt with a wire whisk until stiff peaks form. Add the pancake mix, liquid, and baking soda, and mix until no lumps remain.
Drop a quarter of the batter onto a lightly greased griddle or nonstick pan. When the pancake begins to bubble, scatter a quarter of the chopped orange segments over the top; after a few seconds, flip the pancake quickly. Cook a minute more. Repeat with the remaining 3/4 batter.