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Jaber JR, Morales Bordon D, Arencibia A, Corbera JA, Conde-Felipe M, Ayala MD, Encinoso M. Correlation between Cross-Sectional Anatomy and Computed Tomography of the Normal Six-Banded Armadillo ( Euphractus sexcintus) Nasal Cavity and Paranasal Sinuses. Animals (Basel) 2024; 14:1135. [PMID: 38612374 PMCID: PMC11011167 DOI: 10.3390/ani14071135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/25/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
This research aimed to study the rostral part of the head of the six-banded armadillo, applying advanced imaging techniques such as CT. Furthermore, by combining the images obtained through this technique with anatomical cross-sections, an adequate description of the structures that constitute the rostral part of the head of this species is presented. This anatomical information could provide a valuable diagnostic tool for the clinical evaluation of different disorders in the six-banded armadillo's nasal cavity and paranasal sinuses.
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Affiliation(s)
- José Raduan Jaber
- Departamento de Morfología, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain;
| | - Daniel Morales Bordon
- Departamento de Patología Animal, Producción Animal, Bromatología y Tecnología de Los Alimentos, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain (M.C.-F.)
| | - Alberto Arencibia
- Departamento de Morfología, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain;
| | - Juan Alberto Corbera
- Departamento de Patología Animal, Producción Animal, Bromatología y Tecnología de Los Alimentos, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain (M.C.-F.)
- Hospital Veterinario, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain;
| | - Magnolia Conde-Felipe
- Departamento de Patología Animal, Producción Animal, Bromatología y Tecnología de Los Alimentos, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain (M.C.-F.)
| | - Maria Dolores Ayala
- Departamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, Spain
| | - Mario Encinoso
- Hospital Veterinario, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain;
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González Rodríguez E, Encinoso Quintana M, Morales Bordon D, Garcés JG, Artiles Nuez H, Jaber JR. Anatomical Description of Rhinoceros Iguana (Cyclura cornuta cornuta) Head by Computed Tomography, Magnetic Resonance Imaging and Gross-Sections. Animals (Basel) 2023; 13:ani13060955. [PMID: 36978497 PMCID: PMC10044561 DOI: 10.3390/ani13060955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
In this paper, we attempted to elaborate on an atlas of the head of the rhinoceros iguana, applying modern imaging techniques such as CT and MRI. Furthermore, by combining the images acquired through these techniques with macroscopic anatomical sections, we obtained an adequate description of the relevant structures that form the head of this species. This anatomical information could provide a valuable diagnostic tool for the clinical evaluation of different pathological processes in iguanas such as abscesses and osteodystrophy secondary to nutrient imbalances, skull malformations, fractures, and neoplasia.
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Affiliation(s)
- Eligia González Rodríguez
- Hospital Clínico Veterinario, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain
| | - Mario Encinoso Quintana
- Hospital Clínico Veterinario, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain
- Correspondence: (M.E.Q.); (J.R.J.)
| | - Daniel Morales Bordon
- Departamento de Patología Animal, Producción Animal, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain
| | | | | | - José Raduan Jaber
- Departamento de Morfología, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35413 Las Palmas, Spain
- Correspondence: (M.E.Q.); (J.R.J.)
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Cranial Structure of Varanus komodoensis as Revealed by Computed-Tomographic Imaging. Animals (Basel) 2021; 11:ani11041078. [PMID: 33918974 PMCID: PMC8070356 DOI: 10.3390/ani11041078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 11/17/2022] Open
Abstract
Simple Summary We investigated the head of Komodo dragons using CT imaging. Cross-sections show that all cranial bones can be delineated, while soft tissue structures are evident but not clearly identifiable without an anatomical atlas. Additional three-dimensional reconstructed and maximum intensity projection images of the head were presented to depict bony structures. The anatomical structures identified on the CT images could help further assess the head of the Komodo dragon. Abstract This study aimed to describe the anatomic features of the normal head of the Komodo dragon (Varanus komodoensis) identified by computed tomography. CT images were obtained in two dragons using a helical CT scanner. All sections were displayed with a bone and soft tissue windows setting. Head reconstructed, and maximum intensity projection images were obtained to enhance bony structures. After CT imaging, the images were compared with other studies and reptile anatomy textbooks to facilitate the interpretation of the CT images. Anatomic details of the head of the Komodo dragon were identified according to the CT density characteristics of the different organic tissues. This information is intended to be a useful initial anatomic reference in interpreting clinical CT imaging studies of the head and associated structures in live Komodo dragons.
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de Matos R, Ruby J, Van Hatten RA, Thompson M. Computed tomographic features of clinical and subclinical middle ear disease in domestic rabbits (Oryctolagus cuniculus): 88 cases (2007–2014). J Am Vet Med Assoc 2015; 246:336-43. [DOI: 10.2460/javma.246.3.336] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Chen L, Xiao J, Su IC, Wu YW, Zhang B, Ge KY, Chang YC, Yang C, Ni CF. Establishing a rabbit spinal tumor model for nonvascular interventional therapy through CT-guided percutaneous puncture inoculation. AJNR Am J Neuroradiol 2014; 36:153-9. [PMID: 24812018 DOI: 10.3174/ajnr.a3956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE An animal spinal tumor model is needed to better simulate the clinical situation and to allow percutaneous puncture, which may provide an experimental platform for the new nonvascular interventional therapies. We established a rabbit spinal tumor model through a CT-guided percutaneous puncture inoculation technique for nonvascular interventional therapy. MATERIALS AND METHODS VX2 tumor cells were inoculated into the lumbar vertebrae of 32 rabbits through a CT-guided percutaneous puncture technique; then, the development of hind limb paraparesis was observed in the rabbits twice a day. MR imaging and CT were performed on days 14, 21, and 28 postinoculation and at the development of hind limb paraparesis. On days 21 and 28 postinoculation, 2 rabbits, whose imaging suggested successful modeling without hind limb paraparesis, were chosen on each day. The lumbar vertebrae were sampled from 1 rabbit for histopathologic examination, and the other rabbit underwent PET-CT examination before percutaneous vertebroplasty. Finally the lesion vertebrae were sampled for histopathologic examination. RESULTS The success rate of modeling was 90.6% (29/32) in our study. On day 21 postinoculation, successful modeling was achieved in 21 rabbits, with 19 having no hind limb paraparesis. On day 28 postinoculation, another 7 achieved successful modeling, and only 1 developed hind limb paraparesis. Percutaneous vertebroplasty treatment was successful for the 2 rabbit models. CONCLUSIONS Establishment of a rabbit spinal tumor model through a CT-guided percutaneous puncture technique and inoculation of VX2 tumor is easy and has a high success rate. The established model can be used to study nonvascular interventional therapies for spinal tumor, including percutaneous vertebroplasty.
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Affiliation(s)
- L Chen
- From the Departments of Interventional Radiology (L.C., K.-Y.G., Y.-C.C., C.Y., C.-F.N.)
| | - J Xiao
- Department of Orthopedic Surgery (J.X.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - I-C Su
- Division of Neurosurgery (I.-C.S.), Department of Surgery, Taipei Cathay General Hospital, Taipei, Taiwan School of Medicine (I.-C.S.), Fu-Jen Catholic University, New Taipei City, Taiwan
| | - Y-W Wu
- Nuclear Medicine (Y.-W.W., B.Z.), The First Affiliated Hospital of Soochow University, Suzhou, China
| | - B Zhang
- Nuclear Medicine (Y.-W.W., B.Z.), The First Affiliated Hospital of Soochow University, Suzhou, China
| | - K-Y Ge
- From the Departments of Interventional Radiology (L.C., K.-Y.G., Y.-C.C., C.Y., C.-F.N.)
| | - Y-C Chang
- From the Departments of Interventional Radiology (L.C., K.-Y.G., Y.-C.C., C.Y., C.-F.N.)
| | - C Yang
- From the Departments of Interventional Radiology (L.C., K.-Y.G., Y.-C.C., C.Y., C.-F.N.)
| | - C-F Ni
- From the Departments of Interventional Radiology (L.C., K.-Y.G., Y.-C.C., C.Y., C.-F.N.)
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Orlandi R, Mateo I. Intervertebral Disc Protrusion in a Ferret with Triple Thoracic Block Vertebrae. J Exot Pet Med 2013. [DOI: 10.1053/j.jepm.2013.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Banzato T, Selleri P, Veladiano IA, Martin A, Zanetti E, Zotti A. Comparative evaluation of the cadaveric, radiographic and computed tomographic anatomy of the heads of green iguana (Iguana iguana), common tegu (Tupinambis merianae) and bearded dragon (Pogona vitticeps). BMC Vet Res 2012; 8:53. [PMID: 22578088 PMCID: PMC3439268 DOI: 10.1186/1746-6148-8-53] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Accepted: 04/27/2012] [Indexed: 11/18/2022] Open
Abstract
Background Radiology and computed tomography are the most commonly available diagnostic tools for the diagnosis of pathologies affecting the head and skull in veterinary practice. Nevertheless, accurate interpretation of radiographic and CT studies requires a thorough knowledge of the gross and the cross-sectional anatomy. Despite the increasing success of reptiles as pets, only a few reports over their normal imaging features are currently available. The aim of this study is to describe the normal cadaveric, radiographic and computed tomographic features of the heads of the green iguana, tegu and bearded dragon. Results 6 adult green iguanas, 4 tegus, 3 bearded dragons, and, the adult cadavers of : 4 green iguana, 4 tegu, 4 bearded dragon were included in the study. 2 cadavers were dissected following a stratigraphic approach and 2 cadavers were cross-sectioned for each species. These latter specimens were stored in a freezer (−20°C) until completely frozen. Transversal sections at 5 mm intervals were obtained by means of an electric band-saw. Each section was cleaned and photographed on both sides. Radiographs of the head of each subject were obtained. Pre- and post- contrast computed tomographic studies of the head were performed on all the live animals. CT images were displayed in both bone and soft tissue windows. Individual anatomic structures were first recognised and labelled on the anatomic images and then matched on radiographs and CT images. Radiographic and CT images of the skull provided good detail of the bony structures in all species. In CT contrast medium injection enabled good detail of the soft tissues to be obtained in the iguana whereas only the eye was clearly distinguishable from the remaining soft tissues in both the tegu and the bearded dragon. Conclusions The results provide an atlas of the normal anatomical and in vivo radiographic and computed tomographic features of the heads of lizards, and this may be useful in interpreting any imaging modality involving these species.
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Affiliation(s)
- Tommaso Banzato
- Department of Animal Medicine, Production and Health, Clinical Section, University of Padua, Viale dell'Università 16, AGRIPOLIS, Legnaro, Padua 35020, Italy
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Sant Anna N, Silva B, Soresini G, Silva L. Mielografia em ouriço-cacheiro (Sphiggurus villosus). ARQ BRAS MED VET ZOO 2012. [DOI: 10.1590/s0102-09352012000100010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Relata-se o procedimento de mielografia em um ouriço-cacheiro Sphiggurus villosus, adulto, procedente de vida livre. Após o exame e com o animal sob anestesia geral, evidenciou-se um desvio dorsal do contraste na altura da sétima vértebra torácica (T7), causado por compressão em região ventral dessa vértebra, sugestivo de edema ocasionado pela hemorragia intramedular secundária ao trauma sofrido pelo animal em vida livre. Assim sendo, a mielografia em ouriço-cacheiro mostrou ser bastante válida e eficiente ao apresentar como vantagens a maior precisão para delimitar e localizar a lesão presente na coluna vertebral.
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Low-field magnetic resonance imaging and cross-sectional anatomy of the rabbit head. Vet J 2011; 188:83-91. [DOI: 10.1016/j.tvjl.2010.02.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Revised: 02/26/2010] [Accepted: 02/26/2010] [Indexed: 10/19/2022]
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Kummrow MS, Smith DA, Crawshaw G, Mastromonaco GF. Characterization of fecal hormone patterns associated with the reproductive cycle in female veiled chameleons (Chamaeleo calyptratus). Gen Comp Endocrinol 2010; 168:340-8. [PMID: 20471385 DOI: 10.1016/j.ygcen.2010.04.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Revised: 03/31/2010] [Accepted: 04/27/2010] [Indexed: 11/25/2022]
Abstract
Reptiles have gained popularity in the North American and European pet trade. Large numbers of captive-born veiled chameleons, Chamaeleo calyptratus, are produced annually but knowledge of their reproductive cycle has been limited to anecdotal observations. This study describes the hormonal changes associated with reproductive cycling in female veiled chameleons using non-invasive fecal evaluation of metabolites of the three principal ovarian steroids, estradiol (E2), testosterone (T), progesterone (P), and their metabolites, by enzyme immunoassays. The hormone patterns were compared with follicular development and ovulation as determined by magnetic resonance imaging (MRI). Three main cycle stages were identified on MRI: the previtellogenic stage (PV) with the absence of visible follicular structures, vitellogenic stage (V) with the presence of round follicular structures >2mm diameter, and the gravid stage with the presence of oval egg structures. Although the absolute values of the baselines and peaks for each hormone varied among animals, approximately 24-fold increases over mean P baseline values and 7.5-fold increases over mean E2 and T baseline values were associated with biological events. E2 rose during vitellogenesis, peaked in late vitellogenesis and fell shortly thereafter. P rose during the late vitellogenic stage, peaked in mid-gravidity and fell to baseline values at oviposition. Ovulation occurred with the decreasing E2:P ratio. T levels varied during the pre- and vitellogenic stages then mirrored P with a distinct peak during the time of ovulation and gravidity. These data provides us with the necessary background for future studies on the reproductive biology of this species.
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Evans EE, Souza MJ. Advanced diagnostic approaches and current management of internal disorders of select species (rodents, sugar gliders, hedgehogs). Vet Clin North Am Exot Anim Pract 2010; 13:453-469. [PMID: 20682430 DOI: 10.1016/j.cvex.2010.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
African pygmy and European hedgehogs, sugar gliders, and rodents such as rats, mice, gerbils, hamsters, guinea pigs, and chinchillas are becoming increasingly popular as pets in the United States, and more practitioners are being asked to examine, diagnose, and treat these animals for a bevy of disorders and diseases. Many procedures and techniques used in traditional small and large animal medicine are used for these species, with minor adaptations or considerations. This article examines available diagnostic tools and treatment methodologies for use in hedgehogs, sugar gliders, and selected rodents.
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Affiliation(s)
- Erika E Evans
- Department of Small Animal Clinical Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN 37996, USA
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