Occipital Dysplasia

EtiologyOccipital dysplasia is a congenital abnormality of the formation of the occipital bones of the cranium. The most common manifestation of this condition is an underdeveloped occipital bone leading to a dorsoventrally enlarged (“keyhole shaped”) foramen magnum. In patients with this condition … Read More

Meningioma – orbital

EtiologyMeningiomas are tumors that arise from the thin membranous layer surrounding the central nervous system called the meninges. Specifically, primary orbital optic nerve meningiomas arise from the cap cells of the arachnoid surrounding the intra-orbital portion of the optic nerve. Meningiomas tend … Read More

Meningioma – spinal

EtiologyMeningiomas are tumors that arise from the thin membranous layer surrounding the central nervous system called the meninges. Specifically meningiomas arise from the arachnoid “cap” cells of the arachnoid villi in the meninges. Meningiomas tend to occur in older animals. Large … Read More

Meningioma – intracranial

EtiologyMeningiomas are tumors that arise from the thin membranous layer surrounding the central nervous system called the meninges. Specifically meningiomas arise from the arachnoid “cap” cells of the arachnoid villi in the meninges. Meningiomas are the most common brain tumor in … Read More

Brain Infarction – Hemorrhagic

EtiologyHemorrhagic infarctions (otherwise known as intracerebral hemorrhage or cerebral bleed) are the result of spontaneous hemorrhage within the brain. Underlying conditions that predispose to hemorrhagic infarctions include hypertension, aneurysms and brain tumors. Hemorrhagic infarctions differ from nonhemorrhagic infarctions (otherwise called ischemic infarctions), … Read More

Aspergillosis – nasal

EtiologyAspergillosis is the result of infection by one of several different species of the saprophytic fungi of the genus Aspergillus. While there are hundreds of different species of Aspergillus, the most common causes for infections of the dog and cat are Aspergillus flavus, Aspergillus fumigatus, Aspergillus … Read More

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