Mark Mavroudis, Stamp Collector. 22.1k Views. A letter can be sent to Canada from the U.S. using International First-Class Mail for as low as $0.80 (as long as the weight of the letter is not over 1 ounce).Exact rates based on weight (and for destinations other than Canada) can be found at the USPS website: http://www.usps.com/price s/first...2.1k Views. A letter can be sent to Canada from the U.S. using International First-Class Mail for as low as $0.80 (as long as the weight of the letter is not over 1 ounce).
Definitions for urachal cyst. Urachal cyst. A urachal cyst is a sinus remaining from the allantois during embryogenesis. It is a cyst which occurs in the remnants between the umbilicus and bladder. This is a type of cyst occurring in a persistent portion of the urachus, presenting as an extraperitoneal mass in the umbilical region.
Making the world better, one answer at a time. Synovial cysts are benign, fluid-filled sacs that develop in the facet joints of the lumbar spine as a result of degeneration.any older patients have synovial cysts in their lumbar spines but have no symptoms. Occasionally, however these cysts can cause pain in the lower back that travels down the legs. The pain is relieved when sitting as this position widens the spinal canal and relieves pressure on the nerves.