Intravascular central nervous system T-cell lymphoma in a common dolphin (Delphinus delphis) with cerebral infarction.

Lymphoid and haematopoietic neoplasms are rare in cetaceans. This report describes intravascular lymphoma in an adult common dolphin that presented with neurological signs prior to stranding. Intravascular lymphoma is a rare neoplasm previously recorded in humans, dogs, a cat and a horse.