silent organ

A popular term for the pancreas which refers to the relative paucity of clinical signs seen in pancreatic disease, especially with tumours of the body and tail, until disease process has reached an advanced stage

silent organ

Surgery A popular term for the pancreas, and the relative paucity of clinical signs when it has disease, especially, in tumors of the body and tail. See Whipple's operation.
References in classic literature ?
There it would have stood solitary, or with no livelier companion than the silent organ, in the opposite gallery, six days out of seven.