A case of heterotopic polyodontia was detected in a 6-year-old male la
boratory cynomolgus monkey. A heterotopic tooth had erupted through th
e right maxillofacial area at the side of the nose, with a crustated s
urface. Macroscopically, the tooth was not connected with the right pa
rotid. Radiography and histopathology of the transverse section of the
lesion showed almost normal propriodentium containing alveolar bone a
nd partial continuity with the maxillary bone. We believe this is the
first case description of heterotopic polyodontia in a monkey.