Normal anatomy of the cerebellum (left). Chiari I malformation (right). With the size of the posterior fossa too small, the cerebellar tonsils may herniate through the skull into the spinal canal. The tonsils block the flow of CSF (blue) and may cause fluid buildup inside the spinal cord, called a syrinx.Syringomyelia, hydrocephalus, and other complications.verview. Chiari I malformation is a condition in which the bony space enclosing the lower part of the brain is smaller than normal. Crowding causes the cerebellar tonsils to push through the skull and down into the spinal canal.
Silverton, Oregon. Silverton is a city in Marion County, Oregon, United States. The city is situated along the 45th parallel about 12 miles (19 km) northeast of Salem, in the eastern margins of the broad alluvial plain of the Willamette Valley.
Silverado Fisheries Base. Known as âthe hatchery tucked between the grapesâ, Silverado Fisheries Base is a great stop in Napa County wine country. An excellent supplier of trout and inland salmon for several Bay Area counties, Silverado Fisheries Base also has a casual picnic area for visitor use. Fall is a great time to visit and some of the finest wineries and eateries in the world are within short distance.