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2024, Vol: 14, Issue: 12
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Case Report


First case report of fibropapillomatosis tumor regression identified through photoidentification and histopathology in a Chelonia mydas in Itapirubá, Santa Catarina, Brazil

Yohany Arnold Alfonso Pérez, Samara Rosolem Lima, Gustavo Martinez-souza, Thayana Gião, Marina Galindo Chenard, Michel José Abdalla Helayel, Eliane Teixeira Mársico, Kássia Valéria Gomes Coelho Da Silva, Nayro Xavier De Alencar.


Abstract
Background:
Fibropapillomatosis (FP) is a tumor disease primarily affecting juvenile sea turtles, often characterized by external growths that can regress spontaneously. This study reports the first documented case of total tumor regression in a free-living green turtle (Chelonia mydas) with fibropapillomatosis in southern Brazil.

Case Description:
A juvenile green sea turtle (Chelonia mydas) was captured and recaptured on Itapirubá Beach, Santa Catarina, Brazil, showing sing of tumor regression with a period of 302 days between captures. At the first capture, photographs of the head and other regions were taken for photoidentification, along with documentation of fibropapilloma sites and tumor scoring. Tumor samples from the initial capture were histopathologically confirmed as fibropapillomas. At the recapture, the turtle showed a slight increase in carapace length, remaining classified as a juvenile. Tumors observed during the first capture were absent at recapture, with only scars remaining in the affected areas. Photoidentification confirmed the recapture, facilitating case monitoring. Tumor regression in this turtle is likely linked to various environmental and ecological factors.

Conclusion:
Spontaneous regression of fibropapillomatosis (FP) tumors remains a crucial indicator in the health monitoring of sea turtle populations. This is the first documented case of FP regression in this region of Brazil, suggesting that the turtle's increasing age and reduced exposure to anthropogenic pressure may have contributed to the tumor's regression. Although clinical follow-up of free-living sea turtles is challenging, reports of FP tumor regression are vital for understanding the health dynamics of sea turtle populations.

Key words: Marine turtle, Skin tumor, Follow-up, Coast, Diagnosis


 
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How to Cite this Article
Pubmed Style

Pérez YAA, Lima SR, Martinez-souza G, Gião T, Chenard MG, Helayel MJA, Mársico ET, , Alencar NXD. First case report of fibropapillomatosis tumor regression identified through photoidentification and histopathology in a Chelonia mydas in Itapirubá, Santa Catarina, Brazil. Open Vet J. 2024; 14(12): 3649-3655. doi:10.5455/OVJ.2024.v14.i12.46

Web Style

Pérez YAA, Lima SR, Martinez-souza G, Gião T, Chenard MG, Helayel MJA, Mársico ET, , Alencar NXD. First case report of fibropapillomatosis tumor regression identified through photoidentification and histopathology in a Chelonia mydas in Itapirubá, Santa Catarina, Brazil. https://www.openveterinaryjournal.com/?mno=222109 [Access: January 21, 2025]. doi:10.5455/OVJ.2024.v14.i12.46

AMA (American Medical Association) Style

Pérez YAA, Lima SR, Martinez-souza G, Gião T, Chenard MG, Helayel MJA, Mársico ET, , Alencar NXD. First case report of fibropapillomatosis tumor regression identified through photoidentification and histopathology in a Chelonia mydas in Itapirubá, Santa Catarina, Brazil. Open Vet J. 2024; 14(12): 3649-3655. doi:10.5455/OVJ.2024.v14.i12.46


Vancouver/ICMJE Style

Pérez YAA, Lima SR, Martinez-souza G, Gião T, Chenard MG, Helayel MJA, Mársico ET, , Alencar NXD. First case report of fibropapillomatosis tumor regression identified through photoidentification and histopathology in a Chelonia mydas in Itapirubá, Santa Catarina, Brazil. Open Vet J. (2024), [cited January 21, 2025]; 14(12): 3649-3655. doi:10.5455/OVJ.2024.v14.i12.46


Harvard Style

Pérez, Y. A. A., Lima, . S. R., Martinez-souza, . G., Gião, . T., Chenard, . M. G., Helayel, . M. J. A., Mársico, . E. T., & Alencar, . N. X. D. (2024) First case report of fibropapillomatosis tumor regression identified through photoidentification and histopathology in a Chelonia mydas in Itapirubá, Santa Catarina, Brazil. Open Vet J, 14 (12), 3649-3655. doi:10.5455/OVJ.2024.v14.i12.46


Turabian Style

Pérez, Yohany Arnold Alfonso, Samara Rosolem Lima, Gustavo Martinez-souza, Thayana Gião, Marina Galindo Chenard, Michel José Abdalla Helayel, Eliane Teixeira Mársico, Kássia Valéria Gomes Coelho Da Silva, and Nayro Xavier De Alencar. 2024. First case report of fibropapillomatosis tumor regression identified through photoidentification and histopathology in a Chelonia mydas in Itapirubá, Santa Catarina, Brazil. Open Veterinary Journal, 14 (12), 3649-3655. doi:10.5455/OVJ.2024.v14.i12.46


Chicago Style

Pérez, Yohany Arnold Alfonso, Samara Rosolem Lima, Gustavo Martinez-souza, Thayana Gião, Marina Galindo Chenard, Michel José Abdalla Helayel, Eliane Teixeira Mársico, Kássia Valéria Gomes Coelho Da Silva, and Nayro Xavier De Alencar. "First case report of fibropapillomatosis tumor regression identified through photoidentification and histopathology in a Chelonia mydas in Itapirubá, Santa Catarina, Brazil." Open Veterinary Journal 14 (2024), 3649-3655. doi:10.5455/OVJ.2024.v14.i12.46


MLA (The Modern Language Association) Style

Pérez, Yohany Arnold Alfonso, Samara Rosolem Lima, Gustavo Martinez-souza, Thayana Gião, Marina Galindo Chenard, Michel José Abdalla Helayel, Eliane Teixeira Mársico, Kássia Valéria Gomes Coelho Da Silva, and Nayro Xavier De Alencar. "First case report of fibropapillomatosis tumor regression identified through photoidentification and histopathology in a Chelonia mydas in Itapirubá, Santa Catarina, Brazil." Open Veterinary Journal 14.12 (2024), 3649-3655. Print. doi:10.5455/OVJ.2024.v14.i12.46


APA (American Psychological Association) Style

Pérez, Y. A. A., Lima, . S. R., Martinez-souza, . G., Gião, . T., Chenard, . M. G., Helayel, . M. J. A., Mársico, . E. T., & Alencar, . N. X. D. (2024) First case report of fibropapillomatosis tumor regression identified through photoidentification and histopathology in a Chelonia mydas in Itapirubá, Santa Catarina, Brazil. Open Veterinary Journal, 14 (12), 3649-3655. doi:10.5455/OVJ.2024.v14.i12.46


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