Nasal Melanophoroma in a Captive Green Iguana (Iguana Iguana).

Green iguanas are arboreal lizards, common as pet animals and in captivity. Knowledge of neoplasms in iguanas is scarce, and a challenge to their prevention, treatment, and prognosis. A captive green iguana showed a pigmented nasal exophytic neoplasm. Tumor cells were spindle-shaped to epithelioid with a variable amount of dark-brown or black granular melanin within the cytoplasm, and also presented cytoplasmic positivity for Melan-A and S100. Transmission electron microscopy evidenced intracytoplasmic melanosomes and premelanosomes and provided a definitive diagnosis of a nasal melanophoroma. Full characterization of the clinicopathological and ultrastructural features of the melanophoroma may contribute to the limited knowledge concerning cutaneous neoplasms in green iguanas. Copyright © 2020 Elsevier Inc. All rights reserved.

Citation

Isabel Luana de Macêdo, Davi Emanuel Ribeiro de Sousa, Líria Queiroz Luz Hirano, Khesller Patrícia Olazia Name, Sônia Nair Báo, Márcio Botelho de Castro. Nasal Melanophoroma in a Captive Green Iguana (Iguana Iguana). Topics in companion animal medicine. 2020 Nov;41:100463

Mesh Tags

PMID: 32823162

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