A wild 5-yr-old red deer (Cervus elaphus) was culled from a privately
owned herd because of deformed antlers, retained velvet and bilateral
symmetrical testicular hypogonadism. The clinical and pathological cha
nges seen in this deer were most consistent with congenital hypoplasia
, but testicular atrophy was an alternative possibility for the etiolo
gy of their condition.