A tumor of the delta cells is called a "somatostatinoma".

Finally, the Delta cells are inhibited to reduce the inhibition of gastrin release.

Delta cells (δ-cells or D cells) are somatostatin-producing cells.

Somatostatinoma is a tumor of the delta cells of the endocrine pancreas that produces somatostatin.

Somatostatin is a hormone produced by the mucosal cells of the duodenum and also the "delta cells" of the pancreas.

Beta cells(insulin secretory) and delta cells (somatostatin secretory) are found in the central part of the tail as with the rest of the pancreas.