Hi quarteter
The helpline staff may be able to give you some more information on internal mammary glands if you would like to give them a call. The lines are open again in the morning. Opening hours for the helpline are Monday-Friday 9am - 5pm and Saturdays 9am - 2pm the number to call is 0808 800 6000.
Hope you get your questions answered.
Kind regards,
Emma, Moderator