Lafosse records as colloid cancer a case of diseased prostate in an ox,
in which the mass approximated to the size of the human head, and was
made up of numerous cavities the largest not over 1½ inch in diameter,
and all intercommunicating, and containing a gluey, or gelatinoid liquid
with numerous small round cells and a few multinucleated giant cells. No
evidence is given of the implication of even the adjoining lymph glands,
so that the case was probably only an enlarged cystic prostate.
Fournier records a case in a three year old horse, which on necropsy
showed a ruptured bladder, general peritonitis, and an enlarged
prostate, involving Cowper’s glands. Nocard identified its cancerous
nature by microscopic examination. Yet there is not a word of the
implication of adjacent lymph glands.
Goubaux says prostatic cancer is common in dogs.