Where does the alveolar type II cell granule exit the cell?

Where does the alveolar type II cell granule exit the cell? This is problematic, as I have not actually seen a granule exit the cell at the apical plasma lemma or anywhere, for that matter, on the lateral or basal plasmalemma. This phot is probably a glimpse of the closest encounter between a granule and the apical membrane that I have noticed, to date. This is still not definitive. Wavy lines=apical membrane, arrow points to the cytoplasm between the alveolar space and the granule, which is smeared by the tangential orientation. Close, but not proof.  guinea pig, probably animal 301.

guess_guinea_pig_301