Related Experiment Video
Updated: Aug 14, 2026

Changes in Mammary Gland Morphology and Breast Cancer Risk in Rats
Published on: October 16, 2010
Areolar gland discharge in adolescent females
Abstract:
Two Tanner stage IV adolescent females with secretion of material from the areolar glands of the breast are described. This report, as well as previous case reports, indicates that the condition is benign in the presence of an otherwise unremarkable physical examination. In contrast to galactorrhea, which must be evaluated completely, areolar gland discharge appears to be a curiosity that may be as rare as the number of case reports would suggest. It appears to warrant nothing more than careful observation.
More Related Videos
Related Concept Videos
Exocrine Glands: Methods of Secretion
Merocrine Secretion
Merocrine secretion is the most common type of exocrine secretion. The secretions are enclosed in vesicles and moved to the cell's apical surface, where the contents are released by exocytosis. For example, mucous, a watery secretion rich in the glycoprotein mucin, is a merocrine secretion. The eccrine glands...
Accessory Glands of the Male Reproductive System
The epididymis is a small, comma-shaped organ located at the back of each testicle. The epididymis can be divided into three main parts: the head, body, and tail. The head of the epididymis...
Folliculogenesis
Hormonal Control of the Ovarian Cycle
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
The Mammary Glands
Each breast features a pigmented projection known as the nipple, through which milk emerges via closely spaced openings of ducts, referred to as lactiferous ducts. Surrounding the nipple is a circular pigmented area of skin named the areola, which appears rough due to...
Signs of Puberty

