Paraneoplastic immune-mediated neutropenia in a dog following thymoma excision with later development of metastatic thymic carcinoma treated with toceranib phosphate

O'Connell, Erin ORCID: 0000-0003-0400-9291, Harper, Aaron, Blundell, Richard and Batchelor, DJ ORCID: 0000-0003-0141-9711 (2018) Paraneoplastic immune-mediated neutropenia in a dog following thymoma excision with later development of metastatic thymic carcinoma treated with toceranib phosphate. Veterinary Record Case Reports, 6 (3). e000548-e000548.

Text
Paraneoplastic IMN case report second edit db.docx - Submitted version
Download (6MB)

Official URL: http://dx.doi.org/10.1136/vetreccr-2017-000548

Abstract

<jats:p>A thymoma was an incidental finding in a seven-year-old, female neutered, crossbred dog referred for an acute hepatopathy. Excision of the thymoma was performed via median sternotomy, and 11 weeks later the dog presented with severe neutropenia. The bone marrow was hypercellular, and paraneoplastic immune-mediated neutropenia was diagnosed following exclusion of other causes. The neutrophil count increased to normal within seven days of treatment with prednisolone, which was subsequently tapered. A caudal mediastinal mass was documented 17 months following initial thymoma excision, and pleural and mediastinal metastases were evident on CT. Cytology was consistent with carcinoma. Following the prescription of toceranib phosphate, there was stable disease on CT at eight weeks and six months. At 12 months there was severe locoregional progression and the dog died nine days thereafter. Postmortem examination showed diffuse metastatic carcinoma of the caudal mediastinum, parietal pleura and diaphragm, and histopathology/immunohistochemistry was most consistent with thymic carcinoma.</jats:p>

Item Type:	Article
Uncontrolled Keywords:	Cancer, Rare Diseases, Vaccine Related, Cancer
Divisions:	Faculty of Health and Life Sciences Faculty of Health and Life Sciences > Institute of Infection, Veterinary and Ecological Sciences
Depositing User:	Symplectic Admin
Date Deposited:	16 Aug 2021 07:35
Last Modified:	17 Mar 2024 04:23
DOI:	10.1136/vetreccr-2017-000548
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3047219