831 research outputs found
Magnetic Resonance Imaging features of digastric muscle rostral and caudal bellies in dogs with either trigeminal or facial nerves dysfunction
No full textLumbosacral intraspinal extradural ganglion cyst in a cat
No full textCase summary A 16-year-old neutered female domestic shorthair cat was referred for chronic history of reluctance to jump, stiffness of the tail and lower back pain. Mild pelvic limb ataxia, reduced perianal reflex and lumbosacral discomfort were present on neurological examination. On magnetic resonance imaging, a well-defined rounded structure of 3 mm in diameter was identified on the right dorsal aspect of the epidural space at L7–S1, causing displacement of the cauda equina. The lesion was hyperintense to spinal cord parenchyma on T2-weighted images and hypointense on T1-weighted images, consistent with a fluid-filled structure. A Lumbosacral dorsal laminectomy was performed. A clear fluid-containing structure was identified between the right L7 nerve root and the cauda equina. Following surgical excision, histopathology confirmed the cystic nature of the lesion and revealed thick disorganised sheaths of fibrocollagenous tissue and flattened mesenchymal cells lining the luminal part of the cyst wall. A diagnosis of intraspinal ganglion cyst was made. The cat recovered uneventfully. Seven months after surgery euthanasia was performed for unrelated reasons; no neurological deficits were present. Relevance and novel information This is the first reported case of intraspinal ganglion cyst in a cat. Intraspinal extradural cysts should be considered among other differential diagnoses for cats with lumbosacral myelopathy/ radiculopathy
Austro-italian archaeological investigation in the region of Yozgat (Turkey)
No full textThe article presents methods and results of the first survey campaigns on the site of Yassihuyuk, in the Yozgat province, and an interim evaluation of the data collected
The transpedicular approach for the study of intervertebral disc regeneration strategies: in vivo characterization
No full textPurpose To characterize in vivo the transpedicular approach (TA) as an alternative route to study interverte- bral disc (IVD) regeneration strategies in a sheep model. Methods 48 IVD of 12 sheep were used. TA was per- formed under fluoroscopy, followed by nucleotomy (2-mm shaver resector). A polyurethane scaffold was used to repair the end-plate. X-ray and MRI images were acquired pre-, intra- and post-operatively (1, 3, 6 months). Com- plications were recorded.
Results TA was feasible in all animals; nucleus pulposus (NP) from L1 to L5 was accessible. Nucleotomy followed by end-plate repair was achieved. Loss of NP signal intensity was shown in MRI images of the nucleotomy group.
Conclusions TA is feasible in vivo, repeatable after only a short learning period and safely performed without sig- nificant morbidity. This animal model allows the study of IVD degeneration physiopathology and investigation of IVD regeneration techniques in vivo
Cervical hyperaesthesia in dogs: an epidemiological retrospective study of 185 cases
No full textObjectives: To describe the prevalence, clinical findings and predictors of disease in dogs with cervical hyperaesthesia. Materials and Methods: Medical records of dogs referred for neurological investigation of cervical hyperaesthesia between 2009 and 2013 were retrospectively reviewed. Dogs were assigned to one of the following groups according to the final diagnosis: Non-Neurologic, Brain, Cervical Spine, Multifocal, and Chiari-like Malformation/Syringomyelia. Demographic data, clinical and neurological signs and laboratory findings were compared between groups using univariate analysis; predictors of disease location were assessed by multivariate analysis. Results: Final diagnostic allocations of the 185 records included in the study were as follows: 2.7% Non-Neurologic, 2.2% Brain, 63.2% Cervical Spine, 22.2% Multifocal and 9.7% Chiari Malformation/Syringomyelia. Intervertebral disc extrusion and steroid-responsive meningitis arteritis were the most common diseases. Compared to Multifocal dogs, those allocated a Cervical Spine diagnosis were older, heavier, more frequently ataxic and lame on a thoracic limb; furthermore, they were less frequently depressed or hyperthermic at presentation. Leucocytosis, neutrophilia and monocytosis were more frequent in dogs allocated a Multifocal diagnosis. Dogs with cervical hyperaesthesia older than 36 months and non-hyperthermic at presentation were more likely to have a lesion of the cervical region rather than a multi-focal disease. Clinical Significance: Although non-specific, these results may be useful to guide clinicians in management of dogs presenting with cervical hyperaesthesia. Animal age and body temperature may support the suspicion of either focal or multi-focal cervical spinal disease
Analisi delle caratteristiche in risonanza magnetica di 35 neoplasie intracraniche del cane confermate istologicamente e confronto con la letteratura
No full textIn medicina veterinaria il ricorso alla diagnostica
per immagini mediante risonanza magnetica
(RM) sta conoscendo una sempre più ampia
diffusione; pertanto, nell’ottica di un miglioramento
delle possibilità diagnostiche, terapeutiche
e prognostiche, diviene necessità sempre
più impellente la standardizzazione dei reperti
di diagnostica per immagini in relazione alla
conferma istologica. In questo studio le caratteristiche
RM di 35 neoplasie intracraniche del
cane confermate istologicamente sono state
confrontate con quelle riportate nella letteratura
scientifica internazionale pubblicata tra il
1995 e il 2012. L’obiettivo principale di questo
confronto è quindi quello di ampliare le conoscenze
sulle possibili espressioni patologiche
delle neoplasie analizzate. La peculiare casistica
presentata rende possibile, inoltre, fornire
dati originali su alcuni tipi di patologie tumorali
poco frequenti e poco descritte in medicina
veterinari
Analisi delle caratteristiche in risonanza magnetica di 12 casi di patologie intracraniche non neoplastiche con diagnosi istologica nel cane e confronto con la letteratura.
No full textAnalisi delle caratteristiche in risonanza magnetica di 12 casi di patologie intracraniche non neoplastiche con diagnosi istologica nel cane e confronto con la letteratura
No full textSebbene la risonanza magnetica (RM) permetta
di ottenere immagini delle strutture cerebrali
con un buon dettaglio anatomico e rappresenti
il gold standard per l’identificazione di patologie
del sistema nervoso centrale (SNC), non
esistono caratteristiche specifiche di imaging
che permettano di giungere ad una diagnosi definitiva
in assenza di un esame istologico. Con
lo scopo di analizzare le varie espressioni patologiche
in campo neuro-radiologico veterinario
sono stati presi in considerazione 12 cani con
patologie intracraniche non neoplastiche diagnosticate
istologicamente, con l’obiettivo di
descriverne le caratteristiche di RM e di confrontarle
con quanto riportato nella letteratura
di referenza internazionale pubblicata nel periodo
1995-2012
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