Journal of Veterinary Science & Medical Diagnosis ISSN: 2325-9590

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Case Report, J Vet Sci Med Diagn Vol: 2 Issue: 1

Bilateral Thyroid Follicular Atrophy in a Young Canadian Lynx (Lynx canadensis)

DeFrancisco A1 and Stern AW2*
1Department of Pathobiology, University of Illinois, USA
2Veterinary Diagnostic Laboratory, University of Illinois, USA
Corresponding author : Adam W. Stern
DVM, CMI-IV, CFC, DACVP, Veterinary Diagnostic Laboratory, University of Illinois, 2001 South Lincoln Ave, Urbana, IL 61802, 217-333-1620, USA
E-mail: [email protected]
Received: January 11, 2013 Accepted: February 16, 2013 Published: February 21, 2013
Citation: DeFrancisco A, Stern AW (2013) Bilateral Thyroid Follicular Atrophy in a Young Canadian Lynx (Lynx canadensis). J Vet Sci Med Diagn 2:1. doi:10.4172/2325-9590.1000108

Abstract

Bilateral Thyroid Follicular Atrophy in a Young Canadian Lynx (Lynx canadensis)

A 1.5 year old intact male Canadian Lynx (Lynx canadensis) presented to the referring veterinarian with a 1 year history of poor appetite, lethargy, and weakness with eventual development of neurologic signs (vestibular signs, ataxia). At necropsy, gross lesions were few and non-specific. The lynx had decreased amounts of subcutaneous adipose stores and decreased skeletal muscle mass. Histologically, the thyroid glands were bilaterally decreased in size and approximately 75% of the thyroid gland was replaced by mature adipocytes. The remaining thyroid follicular cells are cuboidal and form follicles of varying sizes (10 µm-100 µm) with a mild amount of colloid.

Keywords: Thyroid follicular atrophy; Hypothyroidism; Lynx; Lynx canadensis; Endocrine

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