Aggressive keloid-mimicking tumor in Melanosuchus niger in captivity/Queloide agressivo imitando tumor em Melanosuchus niger em cativeiro

• Published in: Ciência rural 2013-07, Vol.43 (7), p.1277
• Main Authors: Pereira, Washington Luiz Assuncao, Costa, Antonio Messias, Imbeloni, Aline Amaral, Figueiredo, Thatiana de Andrade, da Silva, Klena Sarges Marruaz
• Format: Article
• Language: Spanish
• Subjects: Analysis; Tumors
• ISSN: 0103-8478

The objective of this note is to describe a case of exuberant scarring formation, with keloid characteristics and pseudo-tumoral configuration in a male Black caiman (Melanosuchus niger), with an estimated age of 60 years, belonging to the Zoobotanical Park at the Emilio Goeldi Museum, located in Belem, Para, Brazil. The alteration appeared on the right posterior limb involving two distal phalanges of the lateral digit and measured 12.4cm at the greatest width. The keloid tissue was surgically removed and samples were processed and analyzed histopathologically, revealing growth made up of fibrous connective tissue with the habitual morphology, which was structurally mature in the more central areas. Key words: skin lesion, Black caiman, Melanosuchus niger, keloid. O objetivo do presente relato e descrever um caso de formacao cicatricial exuberante, caracteristica de queloide e configuracao pseudo-tumoral em um jacare-acu (Melanosuchus niger), macho, com idade estimada de 60 anos, pertencente ao Parque Zoobotanico do Museu Emilio Goeldi, situado em Belem, Para, Brasil. A alteracao manifestou-se no membro posterior direito, envolvendo as duas falanges distais do dedo lateral e mediu 12,4cm na maior largura. A neoformacao foi removida cirurgicamente e amostras foram processadas e analisadas por histopatologia, que revelou crescimento constituido por tecido conjuntivo fibroso de morfologia habitual, estando estruturalmente maduro nas areas mais centrais. Palavras-chave: lesao cutanea,jacare-acu, Melanosuchus niger, Queloide.