Is there breast tissue in the armpit?
Consequently, what causes breast tissue under armpit?
Armpit lumps may be caused by cysts, infection, or irritation due to shaving or antiperspirant use. However, these lumps may also indicate a serious underlying health condition. Seek medical attention if you have an armpit lump that gradually becomes enlarged, is or isn't painful, or doesn't go away.
Also question is, does breast tissue extend to armpit?
In females, each breast is comprised of a network of glands, called "lobules," and milk ducts, which are supported by fat and connective tissue. This glandular tissue extends from the nipple, upward toward the collarbone and laterally into the armpit, or axilla, where it ends in the axillary tail.
Axillary breast tissue, presenting as palpable thickenings in the axilla, can undergo monthly premenstrual changes, such as tenderness and swelling, difficulty with shoulder range of motion, and irritation from clothing. These symptoms may be exacerbated and become more apparent during puberty and pregnancy.