There is only a valve on saline implants and this can definitely be palpable in thin patients. It doesn't always stay directly under the nipple.
Could a Breast Implant Valve Migrate from Under Nipple and Feel Like a Lump?
Doctor Answers 4
Palpable lump in breast implant patient
Yes, in particularly thin individuals, especially with subglandular placement ("over the muscle). However, it is best that you seek medical advice.
Breast Mass VS Saline Breast Implant Valve
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Palpable Breast Implant Valve
The valve of a saline breast implant with an anteriorly place valve can become palpable and can be confused with a small mass. I have seen this on 4-5 occasions and is most common in women who have very little breast tissue pre-op and have had their implants placed between the breast and muscle.
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