Hemorrhagic prostatic cyst in a dog – case report


male, reproduction, ultrasonography

How to Cite

Lima, B. B. ., Miranda, B. S. P., Ramos, D. J., Lopes, B., Pereira, T. M., Franco, . T. R., Pozzobon, R., Fighera, R. A., & Feliciano, M. A. R. (2023). Hemorrhagic prostatic cyst in a dog – case report . Brazilian Journal of Veterinary Medicine, 45, e005122. https://doi.org/10.29374/2527-2179.bjvm005122


We present the case of a five-year-old intact mixed breed male dog with hemorrhagic prostatic cysts. The patient presented with hematuria, dysesthesia, and pain on abdominal palpation. Abdominal ultrasound, hematology, urinalysis, and biochemical evaluation tests were subsequently conducted. Laboratory tests revealed cloudy urine with bacteria, and countless red blood cells. On ultrasound examination, the prostate was severely enlarged, with heterogeneous and reduced parenchyma, surrounding a large cavity filled with anechoic material with moderate cellularity. The urinary bladder was markedly distended and had a round, hypoechogenic structure in the lumen. The patient was hospitalized and had significant, irreversible worsening of the clinical symptoms and died. Subsequently, necropsy of the patient was performed and a histopathological diagnosis of benign prostatic hyperplasia associated with the presence of a prostatic hemorrhagic cyst, prostatitis, and chronic cystitis with an intraluminal blood clot was made. To the best of our knowledge, this is the first report to describe the occurrence of a hemorrhagic cyst in a canine prostate, thus bringing important information from clinical and imaging findings to the veterinary routine.



Black, G. M., Ling, G. V., Nyland, T. G., & Baker, T. (1998). Prevalence of prostatic cysts in adult, large-breed dogs. Journal of the American Animal Hospital Association, 34(2), 177-180. http://dx.doi.org/10.5326/15473317-34-2- 177. PMid:9507431.

Chen, C. H., Lin, Y. H., Tzai, T. S., & Tsai, Y. S. (2008). Prostate cancer associated with hemorrhagic cyst: Findings on transrectal Doppler sonography. Journal of Medical Ultrasound, 16(4), 292-295. http://dx.doi.org/10.1016/ S0929-6441(09)60007-2.

Davidson, A. P., & Baker, T. W. (2009). Reproductive ultrasound of the dog and tom. Topics in Companion Animal Medicine, 24(2), 64-70. http://dx.doi.org/10.1053/j.tcam.2008.11.003. PMid:19501344.

Domingues, S. B. (2009). Prostatic pathology in dogs: Prevalence, symptoms and treatment [Bachelor’s thesis]. Technical University of Lisbon, Faculty of Veterinary Medicine. http://hdl.handle.net/10400.5/1642

Foster, R. A. (2016). Male genital system. In M. G. Maxie (Ed.), Jubb, Kennedy & Palmer’s pathology of domestic animals (6th ed., Vol. 3, pp. 465–510). W.B. Saunders.

Fung, K. H., Tsang, W. K., Kwok, P. C., Lee, W. T., & Tang, K. W. (2020). Cystic prostatic carcinoma: Case report and. Hong Kong Medical Journal, 26(1), 66-69. http://dx.doi.org/10.12809/hkmj197984. PMid:32077862.

Galosi, A. B., Montironi, R., Fabiani, A., Lacetera, V., Gallé, G., & Muzzonigro, G. (2009). Cystic lesions of the prostate gland: An ultrasound classification with pathological correlation. The Journal of Urology, 181(2), 647-657. http://dx.doi.org/10.1016/j.juro.2008.10.006. PMid:19091354.

Herranz Amo, F., Verdú Tartajo, F., Díez Cordero, J. M., Lledó García, E., Bueno Chomón, G., & Leal Hernández, F. (1999). Hemorrhagic prostatic cyst following ultrasound guided biopsy: A case report. Archivos Espanoles de Urologia, 52(4), 379-380. PMid:10380328.

Johnston, S. D., Kamolpatana, K., Root-Kustritz, M. V., & Johnston, G. R. (2000). Prostatic disorders in the dog. Animal Reproduction Science, 60-61, 405-415. http://dx.doi.org/10.1016/S0378-4320(00)00101-9. PMid:10844211.

Lévy, X., Nizanski, W., Von Heimendahl, A., & Mimouni, P. (2014). Diagnosis of common prostatic conditions in dogs: An update. Reproduction in Domestic Animals, 49(Suppl. 2), 50-57. http://dx.doi.org/10.1111/rda.12296. PMid:24947861.

Lopate, C. (2013). Approccio clinico alle pathology del Maschio. In, Riproduzione and neonatology of the cane and del cat (2nd ed., pp. 202-206). Edizioni Veterinarie. https://unisvet.it/courses/ corso-di-riproduzione-e-neonatologia-del-cane-e-del-gatto/

Mullen, H. C., Matthiesen, D. T., & Scavelli, T. D. (1990). Results of surgery in 92 dogs treated for prostatic abs cessation by a multiple penrose drain technique. Journal of American Hospital Association., 26, 369-370. https://www.cabdirect.org/cabdirect/abstract/19902215072

Nyland, T. G., & Matoon, J. S. (2015). Prostate and testis. In T. G. Nyland & J. S. Mattoon (Eds.), Small animal diagnostic ultrasound (3rd ed., pp. 608–633). Elsevier Health Sciences. https://books.google.com.br/books?hl=ptBR&lr= &id=LUst9bY0TVgC&oi=fnd&pg=PA19&dq=Nyland,+T.+G.,+%26+Mattoon,+J.+S.+(2015).+Prostate+and+test is.+Small+animal+diagnostic+ultrasound+(3rd+ed.,+pp.+608%E2%80%93633).+St.+Louis,+MO,+USA:+Else vier +Health+Sciences.&ots=9CQuoKACAG&sig=NOyQb2tk9HZ5Sppa-7jw6Vdvo9I#v=onepage&q&f=false

Nyland, T. G., & Matton, J. S. (2005). Diagnostic ultrasound in small animals (3rd ed., Chap. 13, pp. 255-271). Roca.

Olson, P. N., Wrigley, R. H., Thrall, M. A., & Husted, P. W. (1987). Disorders of the canine prostate gland: Pathogenesis, diagnosis and medical therapy. The Compendium on Continuing Education for the Practicing Veterinarian, 9, 613-623. https://agris.fao.org/agris-search/search.do?recordID=US875385288

Paclikova, K., Kohout, P., & Vlasin, M. (2006). Diagnostic possibilities in the management of canine prostatic disorders. Veterinarni Medicina, 51(1), 1-13. http://dx.doi.org/10.17221/5511-VETMED.

Smith, J. (2008). Canine prostatic disease: A review of anatomy, pathology, diagnosis, and treatment. Theriogenology, 70(3), 375-383. http://dx.doi.org/10.1016/j.theriogenology.2008.04.039. PMid:18514299.

Souza, M. B., Gasser, B., & Rodrigues, M. G. K. (2019). Male reproductive system. In M. A. R. Feliciano, A. R. Assis & W. R. R. Vicente (Eds.), Ultrasonography in dogs and cats. (pp. 154-157). MedVet.

Souza, M. B., Silva, L. D. M., Moxon, R., Russo, M., & England, G. C. (2017). Ultrasonography of the prostate gland and tests in dogs. In Practice, 39(1), 21-32. http://dx.doi.org/10.1136/inp.i6054.

Thrall, M. A., Weiser, G., Allison, R. W., & Campbell, T. W. (2015). Hematologia e bioquímica clínica veterinária. (2nd ed., Chap. 23, pp. 284-285). Roca.

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright (c) 2023 Bruna Bressianini Lima, Brenda Santos Pompeu Miranda, Denise Jaques Ramos, Bibiana Lopes, Tainara Morais Pereira, Tamara Rodrigues Franco, Ricardo Pozzobon, Rafael Almeida Fighera, Marcus Antônio Rossi Feliciano