Cc/ccs - Do They Mean the Same Thing?

Cc is a measurement of volume. Technically it implies a plurality so adding an S is redundant.

cc is the singular form and cc's are just the multiple form of the term "cc". cc is also the same as ml (mililiter).

It may be an abbreviation for CCs to measure volume-I sometimes refer to either one.  If you need clarification, I would ask your PS at consultation.

I have not seen ccs written, but since a cc is 1 cubic centimeter, the additon of an s, as in ccs, probably means multiple cc's. This is also the same thing as ml or millimeter. The metric system is very practical. A cc of water at a certain temperature weighs 1 gram. a thousand cc's is 1 liter.

Those terms are metric system units of volume.  A cubic centimeter (cc) equals one milliliter (ml) of liquid.  Some people add the "s" to indicate plural, others use the abbreviation as both singular and plural.  As an example, on my photo gallery, the descriptions most often list implant fill as "375ml" but you may also see "375cc".  Hopefully this ends the confusion caused by various terms.

A cc is a cubic centimeter or one milliliter.  ccs most likely stands for more than one cc.  One cc of water weights one gram.   This makes the metric system easy to understand.    

I think that you are referring to the volume measurement of saline/silicone used in breast implants. Sometimes, people will use the same initials  to shorten "capsular contracture".

CC means cubic centimeters, a volume measure, equal in number to milliliters. 

The use of the plural is common, but probably grammatically incorrect. All the best.