Source:http://linkedlifedata.com/resource/umls/id/C0596746
CSP: small sacs of undifferentiated epithelium in the body of many insect larvae, which on metamorphosis produce the adult epidermal structures appropriate to each segment, each disc specifying a single structure, e.g., leg disc, antennae disc, genital disc.,MSH: Hollow sacs of cells in LARVA that form adult structures in insects during BIOLOGICAL METAMORPHOSIS.