Adding some SP-A profiles (?) and ribosomes from a second tangential section through an intracisternal body.  I am more and more convinced that the major dark band seen in these profiles within the RER of some type II alveolar cells (many of which are posted in this blog) when sectioned tangentially show the bouquet of the 18-mer of SP-A splayed out giving a hexagonal- or oval-like structure.  These are not plentiful, but also not infrequent, and are just prominent enough to be given attention.  As a comparison, I have examined immediately adjacent cytoplasm and do not see this kind of arrangement of the cytoplasm, therefore it seems NOT to be an random artifact of fixation (though we all recognize that fixation induces artifact of necessity) the hexagonal patterns are found in tangentially sectioned areas of the intracisternal bodies.