Peripheral nerve sheath tumor of the diaphragm with osseous differentiation in a one-year-old dog

Gregory M. Anderson, André Dallaire, Lisa M. Miller, Craig W. Miller

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

A 12-month-old, spayed female German shepherd dog was referred to the Veterinary Teaching Hospital for repair of a diaphragmatic hernia. Abdominal exploration revealed an intact diaphragm, but thoracic exploration revealed a large mass originating from the diaphragm. Resection of the mass was incomplete and required reconstruction of the diaphragm. On histopathology, the mass was composed mainly of spindle-shaped cells with occasional areas of osseous and chondroid tissue. The tumor was diagnosed as a peripheral nerve sheath tumor (PNST) with chondro-osseous differentiation. The dog was released four days after surgery; however, she began having difficulty breathing seven days after discharge, and the owners elected euthanasia. A necropsy was not performed. This is the first known report of a PNST originating in the diaphragm of a dog.

Original languageEnglish (US)
Pages (from-to)319-322
Number of pages4
JournalJournal of the American Animal Hospital Association
Volume35
Issue number4
DOIs
StatePublished - 1999

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