William Vigus
                    
                    
                    
                    
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                        I think you may be referring to either one of two conditions: PORPHYRIA  or progeria.  The closeness of the f and g keys make me think of the latter.  Any good medical index anywhere would define both for you.  There are some articles on healthlinksusa on Porphyria, not on progeria.  Glad to be of help.  No reply needed.