Morphology and distribution of granulomatous inflammation in freshwater ornamental fish infected with mycobacteria     

Novotny L  Halouzka R  Matlova L  Vavra O  Bartosova L  Slany M  Pavlik I 《Journal of fish diseases》2010,33(12):947-955

Mycobacteriosis in fish is a chronic progressive ubiquitous disease caused by Mycobacterium marinum, M. gordonae and M. fortuitum in most cases. The aim of this study was to describe the morphology and distribution of lesions in 322 freshwater ornamental fish across 36 species. Granulomatous inflammation was diagnosed by gross examination and histopathology testing in 188 fish (58.4%); acid‐fast rods (AFR) were determined in only 96 (51.1%) fish from 19 species after Ziehl–Neelsen staining. The most often affected organs with AFR were the kidney (81.2%), digestive tract (54.1%), liver (48.2%), spleen (45.9%) and skin (21.2%); sporadically, AFR were found in the branchiae (9.4%) and gonads (4.7%). In 14 randomly selected fish originating from four different fish tanks, the distribution of mycobacterial infection was studied by culture examination of the skin, gills, muscle tissue, digestive tract, liver, spleen and kidney. In 12 fish, the species M. marinum, M. gordonae, M. fortuitum, M. triviale, and M. avium subsp. hominissuis (serotypes 6 and 8 and genotype IS901? and IS1245+) were detected; mixed infection caused by different mycobacterial species was documented in five of them.  相似文献   

Cardiac cholesterol granulomas in a piper gurnard, Trigla lyra (L.)     

G E Magi  M Iannaccone  C Gili  G Rossi 《Journal of fish diseases》2009,32(5):473-475

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Swim bladder mycosis in pretty tetra (Hemigrammus pulcher) caused by Exophiala pisciphila and Phaeophleospora hymenocallidicola,and experimental verification of pathogenicity          下载免费PDF全文

J Řehulka  A Kubátová  V Hubka 《Journal of fish diseases》2018,41(3):487-500

Spontaneous invasive and chronic disseminated mycosis affected Hemigrammus pulcher kept in a public aquarium, and infection was manifested by inappetence, exophthalmia, erratic swimming, eroded scales, anaemia of the gills and abdominal distension. Internally, there was a grossly swollen swim bladder with a thickened wall filled with a dark mass. The body cavities contained a clear, light amber fluid and a swollen intestine which was full of a watery fluid containing small gas bubbles. Histopathology revealed a granulomatous inflammatory response with fungal hyphae in the lumen and wall of the swim bladder, hepatopancreas, spleen and kidneys with signs of nephrohydrosis. Exophiala pisciphila and Phaeophleospora hymenocallidicola were isolated from the swim bladder, abdominal cavity and gastrointestinal tract. The exogenous source of infection was probably the ample wooden decoration and plants inside the aquarium. Koch's postulates were fulfilled by re‐isolation of both fungal species from fish artificially infected under laboratory conditions. As P. hymenocallidicola is less capable of defence against phagocytosis, E. pisciphila probably played a major role. Severe clinical manifestations with 100% mortality developed in two fish species infected by E. pisciphila. A significant increase in the plasma levels of amino acids was observed as a result of the activation of proteolysis.  相似文献   

Mycobacterium avium granulomas in a captive epaulette shark,Hemiscyllium ocellatum (Bonnaterre)     

M Janse  M J L Kik 《Journal of fish diseases》2012,35(12):935-940

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Systemic granuloma observed in Atlantic salmon Salmo salar raised to market size in a freshwater recirculation aquaculture system          下载免费PDF全文

Christopher Good  David P Marancik  Timothy J Welch  Travis May  John Davidson  Steven Summerfelt 《Aquaculture Research》2016,47(11):3679-3683

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Pyogenic meningitis and trigeminal neuritis secondary to periodontogenic paranasal sinusitis in a red deer (Cervus elaphus)     

Kenji KUTARA  Sho KADEKARU  Reiko SUGISAWA  Yumi UNE 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2021,83(6):947

An adult female red deer died of a severe seizure and dysbasia. Postmortem computed tomography (CT) and magnetic resonance imaging (MRI) were performed. On CT, deciduous right maxillary second and third premolar teeth were observed, and the right infraorbital canal was disrupted. MRI showed that the right trigeminal nerve was enlarged and the right subarachnoid cavity was occupied by fluid and gas. On gross examination, the right paranasal sinus, swollen muscles of the orbit and tonsils, right trigeminal nerve, and right cerebrum surface contained a yellowish-white, cheese-like pus. Based on these findings, the deer was believed to have developed pyogenic meningitis caused by a neuropathic infection secondary to periodontogenic paranasal sinusitis.  相似文献   

不同剂量新疆阿魏对血吸虫活性的影响     

卢昊  赵红梅  王蓉蓉 《中兽医医药杂志》2011,13(4):10-12

为了探讨新疆阿魏杀灭血吸虫的功效,分别用新疆阿魏蒸馏萃取物以0.1、0.2、0.3、0.4 g/kg浓度药液灌服治疗感染血吸虫病家兔,每隔3 d灌服1次,4次后停止给药,4周后剖检,门静脉灌注法收集虫体、计算减虫率,并以组织切片检查该药对血吸虫感染兔肝脏的治疗作用。结果显示,减虫率分别为12.30%、17.20%、46.40%、40.80%;经组织切片观察,家兔肝脏肉芽肿明显减小。表明新疆阿魏具有很强的杀灭血吸虫活性的作用,最佳杀虫剂量为0.3 g/kg。  相似文献   

Oropharyngeal botryomycosis in a geriatric mare     

A. Merchan  E. Jose-Cunilleras  M. Prades  T. Ribera  J. Viu  M. L. Rodríguez-Pozo  A. J. Ramis 《Equine Veterinary Education》2019,31(1):19-25

Botryomycosis is an uncommon chronic bacterial infection that can have cutaneous and visceral involvement. This report describes an 18-year-old mixed-breed mare presented with dysphagia, dyspnoea and an upper respiratory noise that developed secondary to oropharyngeal botryomycosis. Histological examination of the mass showed a granulomatous formation with Splendore–Hoeppli phenomenon surrounding Gram-positive bacteria. This report describes the clinical signs, approach and management of an oropharyngeal Staphylococcus aureus granuloma in a geriatric mare.  相似文献   

UNILATERAL COMPLETE OBSTRUCTION OF THE PRIMARY BRONCHUS IN TWO JUVENILE MACAWS (ARA SPP.)     

Anna Martel-Arquette  Jaimie Miller  Christoph Mans 《Journal of Exotic Pet Medicine》2018,27(4):16-22

Two juvenile macaws presented independently with clinical signs associated with respiratory signs that included coughing, wheezing, and increased respiratory effort and rate. Whole body radiographis were obtained from one patient, and were considered normal. Computed tomography identified unilateral complete primary bronchial obstruction in both cases. Tracheoscopy was performed in both cases and identified a partial obstruction of the syrinx in one case. Biopsy samples collected during tracheoscopy were submitted for microbial culture. Aspergillus spp. was isolated and treatment was unsuccessful for this macaw. The second case was euthanized upon diagnosis. In both cases, a complete necropsy confirmed the primary bronchial obstruction and fungal organisms were identified, consistent with Aspergillus spp. As demonstrated by these two cases, radiography and tracheoscopy do not allow for the diagnosis of primary bronchial obstruction in birds. Therefore, a computed tomography scan is recommended to accurately diagnose this condition in avian patients.  相似文献   

Pyogenic granuloma of the cornea in a pony: Uncommon complication of corneal wound healing     

Alain Regnier  Clara Landrevie  Marie-Claire Robin  Delphine Einsweiler  Jean-Yves Douet  Isabelle Raymond-Letron 《Veterinary ophthalmology》2023,26(1):62-70

A 6-year-old miniature Shetland pony mare was referred for evaluation of a left corneal mass, which developed from the healing tissue of a corneal traumatic ulceration that had occurred 4 weeks previously. On gross examination, a spherical, smooth-surfaced, and pink-colored lesion of about 1 cm in diameter was protruding from the left palpebral fissure. Ophthalmic examination revealed that it was attached to the scar tissue of the cornea, and that one corpora nigra was adherent to the posterior face of corneal wounded area, without sign of uveitis. The remainder of the ophthalmic examination was unremarkable. The mass was excised, and cryotherapy was used as an adjunctive therapy. Histopathology of the resected mass was consistent with a pyogenic granuloma on the basis of radially oriented proliferating capillaries, embedded in immature granulation tissue containing an infiltrate of neutrophils, plasma cells and eosinophils. There were no histological features of malignancy. 2 months after surgery, the ventral part of the fibrotic corneal scar was slightly raised by a pink tissue, suggesting possible recurrence of the initial lesion. A second cryotherapy was performed over the leukoma area. No recurrence has been noted for a follow-up period of more than 25 months. Pyogenic granuloma is a benign proliferative fibrovascular response that typically develops after trauma or surgery. Corneal involvement is rare in humans, and to the authors' knowledge has never been documented in veterinary ophthalmology.  相似文献