Veterinary Research Forum
Vet Res Forum

Severe abdominal distention due to ovarian cysts in a parrot fish (Paraneetroplus synspilus)

Document Type : Clinical Report

Authors

Rahim Peyghan 1
Ali Ghadiri 2
Elham Osroush 3
Zahra Tulaby Dezfuly 1

1 Department of Aquatic Animal Health, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran

2 Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran

3 PhD Candidate, Department of Aquatic Animal Health, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran

https://doi.org/10.30466/vrf.2021.140244.3108
Abstract
In autumn of 2019 a three years old female parrot fish was referred to the veterinary hospital for diagnosis and treatment. The prominent symptom was inappetence and a large mass or unilateral distention in the abdominal cavity. Ultrasonography and radiology imaging with contrast media were done to evaluate the abdominal cavity. According to presumptive diagnosis by imaging, the fluid-filled mass was aspirated by a sterile syringe. No bacteria or other microorganisms were seen in the fluid using microscopy and culturing of the fluid on trypticase soy agar. The parrot fish died after three days because of imbalance and inappetence. Two fluid-filled masses were seen in necropsy. The ovarian structure of the cyst was proved based on the anatomical position, histopathology, ultrasonography and radiology of the cyst tissue. It could be concluded that prompt diagnosis and therapy of ovarian cyst may be necessary for saving the life of the fish.

Keywords

Abdominal distension
Ovarian cyst
Parrot fish
Radiography
  1.  Domínguez-petit R, Alnoso-Fernández A, Saborido-Rey F. Incidence and significance of cystic structures in the ovaries of gadoid fish. Sci Mar 2011; 75(2): 359-368.
  2. Barros Paiva R, Neves A, Vieira AR, et al. Cystic structures in fish ovaries: more common than we think. The case study of Sarpa salpa(Sparidae). Cybium 2014; 38(2): 157-160.
  3. McMillan DB. Fish Histology: Female Reproductive Systems. 1st Berlin, Germany. Springer. 2007, 137.
  4. Ganias K, Somarakis S, Koutsikopoulos C, et al. Ovarian atresia in the Mediterranean sardine, Sardina pilchardus sardina. J Mar Biol Ass UK 2003; 83(6): 1327-1332.
  5. Rideout RM, Rose GA. Suppression of reproduction in Atlantic cod Gadus morhua. Mar Ecol Prog Ser 2006; 320: 267-277.
  6. Murua H, Saborido-Rey F. Female reproductive strategies of marine fish species of the North Atlantic. J Northwest Atl Fish Sci 2003; 33: 23-31.
  7. Tomkiewicz J, Tybjerg L, Jespersen A. Micro- and macroscopic characteristics to stage gonadal maturation of female Baltic cod. J Fish Biol 2003; 62(2): 253-275.
  8. Witthames PR, Thorsen A, Kjesbu OS. The fate of vitellogenic follicles in experimentally monitored Atlantic cod Gadus morhua (L.): application to stock assessment. Fish Res 2010; 104: 27-37.
  9. Yeika EV, Efie DT, Tolefac PN, et al. Giant ovarian cyst masquerading as a massive ascites: a case report. BMC Res Notes 2017; 10, 749. doi:10.1186/ s13104-017-3093-8.
  10. Novelo ND, Tiersch TR. A review of the use of ultrasonography in fish reproduction, N Am J Aquac 2012; 74(2): 169-181.
  11. Blazer VS. Histopathological assessment of gonadal tissue in wild fishes. Fish Physiol Biochem 2002; 26: 85-101.
  12. Linares-Casenave J, Van Eenennaam JP, Doroshov SI. Ultrastructural and histological observations on temperature-induced follicular ovarian atresia on the white J Appl Ichthyol 2002; 18(4-6): 382-390.
  13. Kjesbu OS, Klungsøyr J, Kryvi H, et al. Fecundity, atresia and egg size of captive Atlantic cod (Gadus morhua) in relation to proximate body composition. Can J Fish Aquat Sci 1991; 48(12): 2333-2343.
  14. Engelhard GH, Heino M. Climate change and condition of herring (Clupea harengus) explain long-term trends in extent of skipped reproduction. Oecologia 2006; 146(4): 593-603.
Veterinary Research Forum
Volume 12, Issue 4
Autumn 2021
Pages 515-518

  • Receive Date 21 November 2020
  • Revise Date 27 April 2021
  • Accept Date 08 May 2021

Home

Guide for Authors

Submit Manuscript

Reviewers

Contact Us