Intestinal concretions (calculi or stones in the intestines).
Calculi may be globular, ovoid, cylindrical, and truncated cones.
Hence the Greek name ψηφοι, and the Roman calculi and scrupuli; from whence scrupus, a table-man, or chessman.
The number of calculi which may be present at any time or be produced in the course of years ranges from one to several thousand.
One case154 is reported in which 7802 calculi were found in the gall-bladder, but they must have been very minute in size.
As a rule, in each case where the calculi are multiple there is uniformity of color, shape, and composition.
The migration of calculi may take place by ulcerating through into neighboring hollow organs.
The migrations of calculi produce symptoms so characteristic that error is hardly possible.
Not unfrequently the gall-bladder, full of calculi, is thus shut off from the liver permanently.
Biliary fistul communicating externally, caused by the migration of calculi, are comparatively common.