#spavin  a swelling of the hock joint of a horse; resulting in lameness
  supertype:  animal_disease  a disease that typically does not affect human beings
  subtype:  blood_spavin__bloodspavin  spavin caused by distension of the veins
  subtype:  bog_spavin__bogspavin  spavin caused by collection of fluids
  subtype:  bone_spavin  spavin caused by a bony growth

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