In _horse_: body from intestine. In _ruminants_ bodies from reticulum.
Laparotomy.
One such case in the =Horse= is reported by Hahn. A mare had loss of
appetite, slight colics, frequent efforts to urinate, dullness,
prostration, profuse perspirations, and tremors of the muscular walls of
the abdomen. Rectal examination detected a staff-shaped body extended
from behind forward in the direction of the stomach. The mare survived
twenty days, when it was carried off by a more violent access of colic.
At the necropsy, the spleen was found to measure 28 inches by 8; its
base was adherent to a loop of intestine, and presented a large cavity
filled with a grayish brown fœtid liquid, and a piece of oak measuring
17 inches by ½ inch.
_Ruminants._ In cattle and especially in those that are stabled,
needles, pins, nails, wires and other sharp pointed bodies, that have
been swallowed with the food, and have become entangled in the
reticulated walls of the second stomach, have been found to penetrate
the spleen and determine local abscess and fistulæ. The offending body
in such cases is found in the interior of the abscess or in its walls.
If such cases can be diagnosed the superficial position of the spleen
would seem to warrant surgical interference for the removal of the
foreign body.