I had a client who had had "abscesses" on her inner thigh since puberty.
They acted up just before her period every month and then really went wild
while she was lactating. She had had them lanced many times and had been
treated repeatedly with antibiotics. Yes, you're right. The abscesses were
extraneous mammary tissue, no nipples. My last advice to her was right out
of Ruth Lawrence's old blue book: have a plastic surgeon remove the tissue.
I think that Ruth had advised using ultrasound to explore the extent of the
tissue. I don't know what she did since she moved to France 2 weeks later.

Bonny Nothern, IBCLC