title: A further type of transient cytoplasmic organelle in human spermatids.
abstract: Osmiophilic granules with surrounding vesicles resembling flower-like structures occur transiently during the differentiation of human spermatids. These organelles are incorporated into the residual bodies when mature spermatids are released from the germinal epithelium.
mesh_terms: D003594:Cytoplasmic Granules / Q000648:ultrastructure*; D006801:Humans; D008297:Male; D013087:Spermatids / Q000648:ultrastructure*; D013091:Spermatogenesis; D013094:Spermatozoa / Q000648:ultrastructure*