They put the microchip in the area between the shoulder blades. It could be
scar tissue or a cyst. Poor thing. I hope you find a home for her.

-> Can anyone tell me whether microchips are ever implanted anywhere
-> besides between the shoulderblades?  I found a kitten who seems to be
-> about 6 or 7 months old and there is a bump in her ear.  I thought it
-> was a scab or scar from getting boxed but it isn't.  It feels almost
-> like a piece of bone.  The only thing I can think of is that it might
-> be her microchip.  I hope so since I haven't had any response to the
-> ad in the paper.  This kitten has been declawed front AND BACK!  It
-> makes me so mad.  And nobody is looking in the paper for her!  I just
-> hope she wasn't abandoned after some idiot realized that declawing her
-> completely doesn't make the kitty litter smell any better.  

When they were first used, many years ago, they were implanted
in the ear (dogs, mostly - don't know about cats). But people
would steal the dog and just cut the ear with the chip off. That's
when they started putting them between the shoulder blades.

I seriously doubt that the lump in her ear is a chip. But she may
have one anyway. Take her to any vet to be scanned.

Microchips can "travel" though I don't know if it would travel to the
ear. I always get the vet to check Kim's is in place once a year.
Aliosn