The order Rodentia is the largest order of mammals and is widespread through different habitats (Wilson & Reeder, 2005). Rodents of the family Erethizontidae include New World porcupines and comprises 15 species distributed across three genera: Chaetomys, Coendou and Sphiggurus (Woods & Kilpatrick, 2005). The orange-spined hairy dwarf porcupine (Sphiggurus villosus) is a solitary, nocturnal and arboreal animal, endemic to the Atlantic forest habitat, occurring in southeastern and southern Brazil (Lange & Schmidt, 2014; Oliveira & Bonvicino, 2006). Although occur in primary Atlantic Forest, they may be commonly found on forest borders and, occasionally, near urban areas where human (Jorge et al., 2016) and domestic dogs (Lange & Schmidt, 2014) injuries caused by its spines may occur.Additionally, porcupines are amongst the most frequently roadkilled animals in Brazil (Coelho, Kindel, & Coelho, 2008).Haemotropic mycoplasmas (haemoplasmas) are epicellular bacteria that attach to erythrocyte's surface of a wide range of mammalian hosts (Messick, 2004), including human beings (Hattori et al., 2020).Two haemotropic Mycoplasma species have been reported in

RESUMO: Uma fêmea de coelho-anão apresentando uma membrana vascularizada exuberante cobrindo cerca de 90% da superfície corneana do olho direito foi atendida em um hospital veterinário universitário. Com diagnóstico de pseudopterígio, a coelha foi submetida a intervenção cirúrgica corretiva, com técnica baseada em incisão da conjuntiva aberrante em três secções radiais. O tecido restante foi suturado à conjuntiva bulbar com fio absorvível poliglactina 910 de calibre 6-0, empregando-se ciclosporina tópica para prevenção de recidivas. Ao exame histopatológico o tecido apresentava estroma conjuntivo normal revestido por epitélio conjuntival, sem células caliciformes. O animal se recuperou sem intercorrências e nenhum sinal de recidiva foi observado trinta dias após o procedimento.Palavras-chave: lagomorfo; oftalmologia; membrana aberrante; pseudopterígio ABSTRACT: A female dwarf-rabbit presenting an exuberant vascularized membrane covering about 90% of the corneal surface of the right eye was examined and treated at a veterinary teaching hospital. Diagnosed with pseudopterygium, the animal was submitted to corrective surgery based on incision of the membrane in three radial sections. The remaining tissue was sutured to the bulbar conjunctiva with 6-0 polyglactin 910. Topical cyclosporine treatment was prescribed to avoid recurrences. Histopathological analysis showed normal stroma and conjunctival epithelium with no goblet cells. The rabbit recovered with no complications and no signs of recurrences were noticed until thirty days after surgery.

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Hemoplasmas are epierythrocytic bacteria that infect mammals. ‘Candidatus Mycoplasma haemoalbiventris’ was detected in white-eared opossums (Didelphis albiventris) from southern and central-western Brazil. The present study aimed at: i) screening opossums for tick-borne (TBP) pathogens (Piroplasmida and Anaplasmataceae) and ii) detecting and characterizing hemoplasma species infecting opossums from Curitiba and Foz do Iguaçu cities in the Paraná State, southern Brazil. Thirty blood samples from white-eared opossums were evaluated by PCR assays. Animals were not infested by ectoparasites. The mammalian endogenous gapdh gene was consistently amplified in all samples. All opossums tested negative for Theileria/Babesia spp. and Ehrlichia/Anaplasma spp. by PCR based on 18S rRNA and 16S rRNA genes, respectively. A genus-specific PCR assay based on the 16S rRNA gene of hemoplasmas showed that three/13 (23.08%; CI 95%: 8.18-50.26%) opossums from Foz do Iguaçu were positive for hemotropic Mycoplasma sp. All opossums from Curitiba tested negative for hemoplasmas. Sequencing of both the 16S and 23S rRNA genes revealed that the animals were infected by ‘Ca. M. haemoalbiventris’. Although ‘Ca. M. haemoalbiventris’ is prevalent in opossums in Brazil, clinical signs associated with its infection and its putative vectors remain unknown.

SF6 microbubble contrast ultrasonography in birds is a safe and easy procedure that provides increased contrast and enhanced visualization of the pecten oculi. Future use may enable further discovery of its physiologic functions and aid in the development of therapeutic plans for avian intraocular disease.