Color dilution alopecia in a blue Staffordshire Bull Terrier bitch: Case report

Authors

DOI:

https://doi.org/10.33448/rsd-v10i3.13486

Keywords:

CDA; Dogs; Veterinary dermatology.

Abstract

In dogs, color dilution alopecia (CDA) is one of the skin conditions that leads to progressive hair loss in animals with color diluted coat, such as blue. Although relatively rare, color dilution alopecia has already been described in many races. Here, we describe a case in a blue Staffordshire Bull Terrier bitch, attended in a veterinary hospital in Pernambuco, Brazil. The bitch presented hair rarefaction since it was six months old, at medical examination it was possible to observe alopecia in the dog’s back and flank. Additional tests were performed, discarding other potential diagnosis such as parasitic infections and endocrinal diseases. Then, a skin biopsy was performed to proceed with histopathological evaluation, where it was possible to observe melanin plugs in the hair follicles, causing the distortion of said follicles, pigmentation in the near regions and the presence of melanophages, alterations that suggested CDA. Through the results of the histopathological analysis, associated with the clinical signs and the animal’s historic, it was possible to reach the diagnosis of color dilution alopecia. No treatment was instituted, taking into consideration that the efficacy of the existing treatments varies and the tutor decided against it.

References

Aléssio, B. C., Braga, D., Palumbo, M. I. P. & Babo-Terra, V. J. (2020). Black hair follicular dysplasia in a fox paulistinha dog: clinical and histopathological features. Acta Veterinaria Brasilica, 12, 136-139. 10. 21708/avb. 2020. 14. 3. 9010

Bauer, A., Kehl, A., Jagannathan, V. & Leeb, (2017). T. A novel MLPH variant in dogs with coat colour dilution. Animal Genetics, 49, 94-97. 10. 1111/age. 12632

Ferreira, R. R., Machado, M. L. S., Aguiar, J. & Spanamberg, A. (2007). Displasias foliculares ligadas à cor da pelagem em cães: displasia folicular dos pelos pretos e alopecia por diluição da cor. Acta Scientiae Veterinariae, 35, 119-124. 10. 22456/1679-9216. 15934

Gondim, A. L. C. L. & Araujo, A. K. L. (2020). Displasia folicular dos pelos pretos em cães: Revisão. Pubvet, 14(4), 1-6.

Gouveia, M. C. S., Mencalha, R. N. & Mourão, M. I. O. C. (2020). Alopecia por diluição da cor em cão da raça yorkshire: relato de caso. Pubvet, 14(2), 1-4. 10. 31533/pubvet. v14n2a509. 1-4

Hargis, A. M., Thomassen, R. W. & Phemister, R. D. (1977). Chronic dermatosis and cutaneous squamous cell carcinoma in the Beagle dog. Veterinary Pathology, 14, 218-28. 10. 1177/030098587701400304

Kim, J. H., Kang, K. I., Sohn, H. J., Woo, G. H., Jean, Y. H. & Hwang, E. K. (2005). Color-dilution alopecia in dogs. Journal of Veterinary Science, 3(6), 259-261.

Lopes, N. L., Peixoto, A. P., Costa, T. S., Pisani, R. B. R., Medeiros, C. M. B. T., Ramadinha, R. R., Mascarenhas, M. B. & Fernandes, J. I. (2017). Alopecia por diluição da cor: relato de caso. Brazilian Journal of Veterinary Medicine, 3(39), 198-202. 10. 29374/2527-2179. bjvm014117

Macedo, C. L. A., Santana, T. S., Ferreira, A. F. P., Jucá, N. B. H., Crispim, K. S. L., Banhos, M. E. H., Amorim, L. C. P., Rabelo, K. P. S., Brasil, D. R. M., Basso, S., Araújo, R. C., Rios, M. S., Costa, A. J. A. & Castro júnior, J. E. (2020). Androgenetic alopecia (New capillary protocol in androgenic alopecia). Research, Society and Development, 9(9), 1-23. 10. 33448/rsd-v9i9. 7457

Miller, W. H. (1991). Alopecia associated with coat colour dilution in two Yorshire Terriers, one Saluki and one mix–breed. Journal of the American Animal Hospital Association, 27, 39-43.

Palumbo, M. I. P., Fabris, V. E. & Machado, L. H. A. (2012). Carcinoma de células escamosas em um cão com alopecia por diluição de cor. Veterinária e Zootecnia, 4(19), 507-512.

Perego, R., Proverbio, D., Roccabianca, P. & Spada, E. (2009). Color dilution alopecia in a blue Doberman pinscher crossbreed. Canine Veterinary Journal, 50: 511-514.

Pereira, A. S., Shitsuka, D. M., Parreira, F. J. & Shitsuka, R. (2018). Metodologia da pesquisa científica. UFSM.

Santos, L. M., Messas, N. B., Palumbo, M. I. P., Miyasato, L. A., Leal, P. V., Martins, T. B. & Ramos, C. A. N. (2017). Identification of SNP c. -22G>A in the melanophilin gene from a dog with color dilution alopecia: case report. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 6(69), 1503-1507. 10. 1590/1678-4162-9710

Schmutz, S. M. & Berryere, T. G. (2007). Genes affecting coat colour and pattern in domestic dogs: a review. Animal Genetics, 38, 539-549. 10. 1111/j. 1365-2052. 2007. 01664. x

Welle, M., Phillipp, U., Rüfenacht, S., Roose, P., Scharfenstein, M., Schütz, E., Brenig, B., Linek, M., Mecklenburg, L., Grest, P., Drögemüller, M., Haase, B., Leeb, T. & Drögemüller C. (2009). MLPH genotype—Melanin phenotype correlation in Dilute Dogs. Journal of Heredity, 100, 75-79. 10. 1093/jhered/esp010

Published

21/03/2021

How to Cite

BARAÚNA JÚNIOR, D.; ALBINATI , A. C. L. .; SILVA, A. L. da .; XAVIER, J. G.; SANTOS JÚNIOR, M. J. dos. Color dilution alopecia in a blue Staffordshire Bull Terrier bitch: Case report. Research, Society and Development, [S. l.], v. 10, n. 3, p. e43710313486, 2021. DOI: 10.33448/rsd-v10i3.13486. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/13486. Acesso em: 12 apr. 2021.

Issue

Section

Agrarian and Biological Sciences