Translator Disclaimer
1 March 2007 URATE NEPHROLITHIASIS IN A NORTHERN ELEPHANT SEAL (MIROUNGA ANGUSTIROSTRIS) AND A CALIFORNIA SEA LION (ZALOPHUS CALIFORNIANUS)
Sophie Dennison, Frances Gulland, Martin Haulena, Helio De Morais, Kathleen Colegrove
Author Affiliations +
Abstract

Nephrolithiasis has rarely been reported in marine mammals. During 2004 and 2005, two cases of nephrolithiasis were diagnosed during routine necropsy examination, one in a northern elephant seal (Mirounga angustirostris) and one in a California sea lion (Zalophus californianus). Nephroliths were found throughout both kidneys during necropsy examination, varying in size from 1–10 mm in diameter in the northern elephant seal and from 1–15 mm in diameter in the California sea lion. Necropsy and histopathology revealed nephroliths in association with renal pelvic dilation and pyelonephritis in both animals. In addition, hydronephrosis was noted in the sea lion. Nephroliths were composed of uric acid and ammonium urate in the northern elephant seal and of ammonium urate in the California sea lion. The underlying disease leading to nephrolith formation was not determined; however, it is hypothesized that unknown metabolic derangements due to morphologic or physiologic differences may have played a role. This is the first report of urate nephrolithiasis in the California sea lion and northern elephant seal.

Sophie Dennison, Frances Gulland, Martin Haulena, Helio De Morais, and Kathleen Colegrove "URATE NEPHROLITHIASIS IN A NORTHERN ELEPHANT SEAL (MIROUNGA ANGUSTIROSTRIS) AND A CALIFORNIA SEA LION (ZALOPHUS CALIFORNIANUS)," Journal of Zoo and Wildlife Medicine 38(1), 114-120, (1 March 2007). https://doi.org/10.1638/05-121.1
Received: 5 December 2005; Published: 1 March 2007
JOURNAL ARTICLE
7 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top