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Branchial Tumor in a Blue Striped Grunt ( Haemulon sciurus )

Branchial Tumor in a Blue Striped Grunt ( Haemulon sciurus ). Jason Kimbro, DVM Clinical Instructor, Pathology Disney’s Animal Programs/UF College of Veterinary Medicine. D08-62 Blue Striped Grunt. Signalment: Adult female Blue striped grunt Hx:

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Branchial Tumor in a Blue Striped Grunt ( Haemulon sciurus )

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  1. Branchial Tumor in a Blue Striped Grunt (Haemulon sciurus) Jason Kimbro, DVM Clinical Instructor, Pathology Disney’s Animal Programs/UF College of Veterinary Medicine Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  2. D08-62 Blue Striped Grunt • Signalment: • Adult female Blue striped grunt • Hx: • Large mass at opening of the left operculum • Aspirate revealed neoplastic cells • Biopsy revealed an invasive thyroid tumor Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  3. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  4. D08-62 Blue Striped Grunt • NX: • Large mass, caudal left branchial cavity • Mass adherent to body wall and branchial arches • Nephroliths in the caudal kidney • Histo: • Follicular carcinoma, thyroid gland • Nephrocalcinosis, chronic, multifocal severe, with tubular necrosis and granulomatous inflammation, caudal kidney. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  5. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  6. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  7. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  8. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  9. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  10. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  11. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  12. Discussion • Neoplasia is rare in fish • Thyroid tumors – one of most common • Locally invasive • Metastasis is rare • Originate at ventral branchial arch • Nephrocalcinosis • Systemic acidosis • Tubular Ca++ salt precipitation • Tubuloepithelial degeneration/necrosis • Secondary granulomatous inflammation Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  13. References • Harada, T, Itoh H, Hatanaka, J, Kamiya, S, and Enomoto, M (1996). A morphological study of a thyroid carcinoma in a medaka, Oryzias latipes (Temminck & Schlegel), Journal of Fish Diseases 19(2): 271-277. • Roberts RJ (2004). Fish Pathology. W.B. Saunders, Philadelphia, PA. • Smart, GR, Knox, D, Harrison, JG, Ralph, JA, Richards, RH, and Cowey, CB (1979). Nephrocalcinosis in rainbow trout Salmo gairdneri Richardson; the effect of exposure to elevated CO2 concentrations, Journal of Fish Diseases 2(4): 279-289. • Stoskopf MK (1993). Fish Medicine. W.B. Saunders, Philadelphia, PA. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

  14. Questions considered here…. Presented at SEVPAC 2008 – Permission granted for use on SEVPAC website only

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