Trichobezoar (hairball – furball)
Trichoepithelioma
Trichofolliculoma
Tricholemmoma
Trichomoniasis (canker – frounce)
Trichostongylus retortaeformis (rabbit nematode)
Tricuspid valve disorder
Transient trauma-related pigmentary loss
Transitional cell carcinoma (site unspecified)
Transitional cell carcinoma of urinary bladder (type unspecified)