Hydranencephaly
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Etiology Hydranencephaly is a congenital malformation of the brain in which the cerebral hemisphere(s) are absent to varying degrees. Hydranencephaly is an extreme form of porencephaly, a condition in which large cystic regions develop within the... Read More

Hydrocephalus – Congenital
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Etiology The term hydrocephalus is derived from the greek "hydro" for water and "cephalus" for head. As such the condition is one in which there is an increased accumulation of cerebrospinal fluid (CSF) within the... Read More

Pituitary Macroadenoma
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Etiology A pituitary adenoma is a benign, neoplastic proliferation of epithelial cells of the pituitary gland. These cells typically demonstrate both autonomous growth and function. The most common pituitary adenomas in veterinary medicine are microscopic tumors of... Read More

Ectopic Ureter
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Etiology Ectopic ureters are a congenital condition that occur when the embryonic mesonephric and metanephric duct systems do not develop normally. The metanephric duct eventually develops into the ureter. In patients with ectopic ureters, the metanephric duct originates in an... Read More

Brain Infarction – Hemorrhagic

Etiology Hemorrhagic 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 … Read More

Ectopic Ureter

Etiology Ectopic ureters are a congenital condition that occur when the embryonic mesonephric and metanephric duct systems do not develop normally. The metanephric duct eventually develops into the ureter. In patients with ectopic ureters, the metanephric duct originates in an abnormal location or migrates in … Read More

Hydranencephaly

Etiology Hydranencephaly is a congenital malformation of the brain in which the cerebral hemisphere(s) are absent to varying degrees. Hydranencephaly is an extreme form of porencephaly, a condition in which large cystic regions develop within the cerebral hemispheres.  Pathophysiology The abnormal … Read More