However, it is only after 1400 that we can be certain that it was being used as a surname rather than as a description of someone's occupation or status. There was never a Highland clan of that name. However, it is frequently found among the Clan Chattan confederacy. Clarks appear to have been a sept (under the protection) of the MacPhersons (whose origins were also from the church, Mac-a Phearsain meaning in Gaelic son of the parson in the days when celibacy of the priesthood was not enforced).
Prostate cancer is frequently seen as an area of low signal abnormality in the peripheral zone. Some cancers are isointense and cannot be seen on standard MRI. Other conditions, such as prostatitis, atrophy and calcifications, may also cause low signal intensity and result in a number of false positives.
MRI stands for magnetic resonance imaging. An MRI scan uses magnetism and radio waves to build up a picture of the inside of the body. It can show how deeply a tumour has grown into body tissues.For some types of cancer it can tell whether the tissue left behind after treatment is cancer or not.hat an MRI scan is. MRI stands for magnetic resonance imaging. This type of scan uses magnetism and radio waves to build up a picture of the inside of the body. Below is an example of an MRI scan of the head. MRI is completely painless, but the scanner is very noisy.