The axillary tail, also known as the "tail of Spence," is a wedge-shaped extension of breast tissue that extends into the axilla or armpit area.
It is a normal anatomical feature in some individuals and can occasionally be a site for breast tissue abnormalities, including tumors or lymph nodes. Monitoring the axillary tail is important for early detection of breast-related issues and maintaining breast health. It underscores the complex nature of breast anatomy and the significance of comprehensive breast examinations in medical care.