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.
The Durango and Silverton Railroad has been in continuous operation since the train arrived in Durango in 1881 and began taking passengers to Silverton in 1882. 1 About the Durango Silverton Railroad. 2 Durango Silverton Railroad Coupons and Free Offers. 1  At various times throughout the year, coupon websites like DestinationCoupons.com offer printable Durango Silverton Railroad coupons. Savings are usually for 10% to 20% off ticket prices. 2  The Durango Silverton Railroad invites people to become a fan on Facebook.