Apocrine

They observed that apocrine metaplasia often was present in breasts with other "noncancerous proliferative lesions," but they found no significant difference in the frequency of apocrine metaplasia between "cancerous and noncancerous breasts."

Lobular cysts as well as micro- and macrocysts are very often lined to a variable extent by apocrine epithelium. Pathologists call this condition apocrine metaplasia, meaning a transformation of the normal epithelial cells into sweat-gland-like cells similar to those found in the apocrine glands of the vulva, eyelid, and external auditory canal.

Apocrine glands are distributed throughout the body but are present in greatest abundance in the axilla, followed by the anogenital region.

Two appreciate what happened, note that sweat glands come in two varieties, apocrine and eccrine.