Other causes of prostate enlargement include prostate cancer and prostate infection (prostatitis). Causes of blockage of the urethra that can occur in both sexes include scar tissue, injury (as in a car wreck or bad fall), blood clots, infection, tumors in the pelvic region, and stones (rare).
Cast Fossils: an imprint that is filled in, then fossilized Permineralization: process in which an organism dies and sediment enters the body, filling in the pores of a leaf, or a bone or a shell Whole Body Preservation: occurs when the total organism is fossilized; may occur through freezing or falling in tree amber
Casts. Casts are cylindrical particles sometimes found in urine that are formed from coagulated protein secreted by kidney cells. They are formed in the long, thin, hollow tubes of the kidneys known as tubules and usually take the shape of the tubule (hence the name).