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Below you will find links to various external sites, with helpful information on various topics.
Bovine Radiology Atlas
This atlas provides an overview of the normal and pathological x-ray anatomy of cattle and explains how to obtain those images.
Embryology, Universität Freiburg, Lausanne und Bern
The site embryology.ch provides fantastic explanations on the development of various organ systems, including good quality animations that facilitate the understanding of complicated folds, twists or invaginations.
EVDI Homepage
Of course, reference to the EVDI page is a must. Here you will find everything that the Association (EAVDI) and the College (ECVDI) have to offer.
MRT Physik
Below are several links with helpful explanations on the physics of magnetic resonance tomography. The explanations go beyond a simple explanation of magnetism, spin, and precession. Just the right thing for anyone who wishes to understand more about the structure of MRI sequences, special sequences, selectable parameters, functional MRIs or just an explanation for an abbreviation or an attribute in the DICOM header (dicomlookup.com) searches.
Neuroanatomy
This page gives an overview of the embryology and anatomy of the brain, spinal cord and peripheral nerves, including a cross-sectional overview.
Neuropathology Atlas
This page is a supplement to the book “Veterinary Neuropathology, Essentials of Theory and Practice”. It is an interactive learning programme. MRI images of neurological patients are shown with the corresponding anatomical and histo-pathological images.
Vet Anatomy IMAIOS
Vet-Anatomy offers an interactive cross-sectional and x-ray atlas (CT and MRI). At present, a CT atlas of the elbow and head are available for free. In addition, there is an explanation of the x-ray anatomy of the head. An MRI atlas of the head is also available with a paid subscription.
Veterinary Anatomy Homepage, University of Minnesota
This page provides information about the anatomy of pets with pictures of specimens. You will also find a CT & MRI atlas of the brain here.
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Es ist ein Weilchen her …
Hier endlich ein neuer spannender Fall zum knobeln. Ihr könnt den Fall unter www.veheri.com/cases/1011329632 vollständig einsehen. Die Lösung gibt es in ca. 2 Wochen auf www.veheri.com. Bis dahin bin ich gespannt auf eure Ideen, hier oder auf veheri.
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It's been a while...
Here's finally a new, exciting case to puzzle over. You can view the case in full at www.veheri.com/cases/1011329632. I'm excited to hear your ideas. The solution will be available in about 2 weeks at www.veheri.com. Until then I'm excited to hear your ideas, here or on veheri.
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Radiological report:
A right sided, retropharyngeal large heterogenous mass is visible. The mass starts medial to the mandibular gland and extends dorsally towards the neurocranium. The mass infiltrates the digastric and medial pterygoid muscle. It causes moth eaten and permeative osteolysis of all parts of the temporal bone. Extension of the mass through the osteolysis into the neurocranium is visible, forming a superficial plaque like mass. Intracranially the mass extends from the level of the hypophyseal fossa to the osseous tentorium cerebelli. Extracranially the mass follows the carotid artery up to the level of the thyroid gland. The mass shows a strong, heterogenous contrast enhancement.
Radiological diagnosis:
Aggressive, soft tissue right retropharngeal mass in region of the carotid bifurcation
Diagnosis
Carotid body tumor / paraganglioma
Discussion
Carotid body tumor is a type of chemodectoma or paraganglioma. They arise from them chemoreceptors within the wall of the carotid artery at the level of the bifurcation of the common carotid artery. Brachycephalic dogs and boxers are predisposed, with a male predilection. Reported median age is 9 years. The tumor shows an invasive growth pattern and follows the internal carotid artery into the neurocranium. Clinical symptoms include palpable mass, respiratory problems, Horner`s Syndrome, swallowing problems, head tilt, etc.
The mass should not be confused with thyroid tumors or a mass of medial retropharyngeal lymphnode which appear and behave differently.
*Kromhout, K., Gielen, I., De Cock, H.E. et al. Magnetic resonance and computed tomography imaging of a carotid body tumor in a dog. Acta Vet Scand 54, 24 (2012). doi.org/10.1186/1751-0147-54-24
*Mai, Wilfried; Seiler, Gabriela S.; Lindl-bylicki, Britany J.; Zwingenberger, Allison L. (2015). CT AND MRI FEATURES OF CAROTID BODY PARAGANGLIOMAS IN 16 DOGS. Veterinary Radiology & Ultrasound, 56(4), 374–383. doi:10.1111/vru.12254
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Sebastian Ganz
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