Melanosis Renum Bovis

Svenkerud, R

doi:10.1186/bf03548537

Cited by 6 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this necropsy, both kidneys were found to have dark blue discoloration and equally discolored to the same extent. These findings are consistent with similar findings previously reported [4]. The normal gross morphology of the discolored kidneys reported here is in agreement with similar incidental findings by Rude et al [3] at meat inspection where cattle kidneys with dark brown to black discoloration due to the deposition of lipofuscin pigment were found to have normal gross morphology.…”

Section: Discussionsupporting

confidence: 93%

“…Generally, BRL is a rare disorder in cattle that has been reported to occur incidentally during meat inspection after slaughter of cattle found to be clinically healthy during antemortem inspection [1][2][3][4]. Unlike previous reports, this article reports a case of BRL encountered at necropsy which revealed a shrunken, cooked-like liver with flabby consistence and large pale necrotic foci, and dark blue discoloration of both kidneys.…”

Section: Discussionmentioning

confidence: 99%

“…It is associated with brown to black kidney discoloration, which is condemned as unfit for human consumption [1,3]. Grossly, the main characteristic is a brownish to dark brown discoloration of the kidneys in an apparently healthy animal [2,4]. The discoloration affects the entire organ and both kidneys are equally affected to the same extent.…”

Section: Introductionmentioning

confidence: 99%

“…The extent of discoloration varies. In some instances, it may be so intense thsat the kidneys appear dark blue [4]. This discoloration has led to the more common name "black kidney disease" [2,4,5].…”

Section: Introductionmentioning

confidence: 99%

“…In some instances, it may be so intense thsat the kidneys appear dark blue [4]. This discoloration has led to the more common name "black kidney disease" [2,4,5]. Histopathology of "black kidneys" demonstrates no renal lesions and a preserved renal parenchyma.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Bovine Renal Lipofuscinosis in a Tanzanian Crossbred Yearling Male Calf: A Case Report

Masola

2024

Adv. Res.

View full text Add to dashboard Cite

Aim: To report a rare case of bovine renal lipofuscinosis (BRL) that was encountered incidentally at necropsy. Presentation of the Case: In June 2023 an yearling male calf was found dead in one of the dairy cattle farms in Mbeya city, Tanzania; after being sick for about a week. The owner requested a necropsy service to establish the cause of the death of the animal. Necropsy revealed significant gross pathological changes in a liver that was cooked-like and shrunken, with flabby consistence and large pale necrotic foci. Furthermore, dark blue discoloration of both kidneys with normal morphology was evident. Based on the history and gross pathological findings, the animal was diagnosed to have died from acute hepatitis. Differential diagnosis for kidney discoloration included hemachromatosis, renal hemosiderosis, BRL, and melanotic renal cell carcinoma (MRCC). After ruling out hemachromatosis, renal hemosiderosis and MRCC in the list of possible causes of kidney discoloration based on the lack of gross pathological findings, particularly hepatic fibrosis, pallor, and a mass of tumor tissue in the kidneys that are characteristic of hemachromatosis, renal hemosiderosis and MRCC, respectively; the cause of kidney discoloration was diagnosed as BRL. Discussion: In this necropsy, the history and gross pathology suggested that the animal’s death could be attributed to acute liver failure, which is one of the sequelae of acute hepatitis. Kidney discoloration was not considered an attribute factor to the animal’s death because, with the exception of discoloration, the kidneys did not have gross pathological changes. Moreover, to date there has been no report of a clinical disease in cattle associated with BRL. However, BRL is an important disorder because it leads to condemnation of the affected kidneys as unfit for human consumption. Conclusion: The case of BRL reported here was an incidental finding at necropsy, and is not associated with the death of the animal.

show abstract

Section: Discussionsupporting

confidence: 93%