ADVANCED DIAGNOSTIC IMAGING AND PATHOLOGIC FINDINGS OF THYROID LESIONS IN TWO SHORT-BEAKED ECHIDNAS ( TACHYGLOSSUS ACULEATUS ).

Autor:	Vaasjo E; Department of Animal Health, St. Louis Zoo, St. Louis, MO 63110, USA, emmavaasjo@gmail.com., Clancy MM; Conservation Science and Wildlife Health, San Diego Zoo Wildlife Alliance, Escondido, CA 92027, USA., Kinney ME; Conservation Science and Wildlife Health, San Diego Zoo Wildlife Alliance, Escondido, CA 92027, USA., Hostnik ET; Chicago Zoological Society, Brookfield Zoo, Brookfield, IL 60513, USA., Burns RE; Conservation Science and Wildlife Health, San Diego Zoo Wildlife Alliance, Escondido, CA 92027, USA., Duncan M; Department of Animal Health, St. Louis Zoo, St. Louis, MO 63110, USA., Hanley CS; Department of Animal Health, St. Louis Zoo, St. Louis, MO 63110, USA.
Jazyk:	angličtina
Zdroj:	Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians [J Zoo Wildl Med] 2024 Mar; Vol. 55 (1), pp. 295-300.
DOI:	10.1638/2023-0056
Abstrakt:	Two zoo-maintained short-beaked echidnas ( Tachyglossus aculeatus ) had long histories of intermittent anorexia and lethargy. Case 1 presented with a recurrence of these signs after transfer to another facility and died shortly after arrival. A focal area of hyperattenuation within the paratracheal tissue of the cranial mediastinum was noted antemortem on CT. Postmortem, this corresponded with severe thyroid follicular hyperplasia with lymphoplasmacytic thyroiditis. Additional findings included a systemic fungal infection without an inflammatory response, suggesting underlying factors such as torpor or immunosuppression. In Case 2, an intrathoracic mass was identified during a preshipment examination. CT confirmed a contrast-enhanced mass compressing the cranial vena cava and right atrium, and the animal was euthanized. The mass was diagnosed histologically as thyroid adenocarcinoma. These cases report thyroiditis and thyroid adenocarcinoma in echidna and describe the use of IV contrast and CT as a diagnostic aid in this species.
Databáze:	MEDLINE
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