D cell, the third endocrine element of the pancreatic islet.
D007516:Adenoma, Islet Cell / Q000473:pathology; D000663:Amphibians / Q000033:anatomy & histology; D000818:Animals; D001717:Birds / Q000033:anatomy & histology; D003593:Cytoplasm; D003920:Diabetes Mellitus / Q000473:pathology; D003921:Diabetes Mellitus, Experimental / Q000473:pathology; D005399:Fishes / Q000033:anatomy & histology; D006056:Golgi Apparatus; D006168:Guinea Pigs; D000882:Haplorhini / Q000033:anatomy & histology; D006801:Humans; D007515:Islets of Langerhans / Q000166:cytology* / Q000473:pathology / Q000502:physiology; D008854:Microscopy, Electron; D008928:Mitochondria; D010190:Pancreatic Neoplasms / Q000473:pathology; D012104:Reptiles / Q000033:anatomy & histology; D013194:Staining and Labeling