Possible parachordoma in a dog

Abstract

This is the first reported case of a possible parachordoma in a dog, a benign tumour with cytological features of malignancy.

Primary Intestinal and Vertebral Chordomas in Laboratory Zebrafish (Danio rerio)

“…However, the distinction between parachordoma and chordoma in that case was largely informed by the extra-axial location rather than morphologic characteristics, and the authors acknowledged uncertainty in the diagnosis. 6 No spontaneous extraskeletal soft-tissue chordomas originating in the gastrointestinal tract have been reported to date in any species. Primary vertebral chordomas have been previously reported as a rare tumor in zebrafish (2% incidence), but no spontaneous chordomas in any location have been reported in any other species of fish.…”