D. Enlarged sebaceous cyst. E. Axillary adenopathy. In structural anomalies or anatomic variants of the breast, the presence of a supernumerary nipple is more common than the presence of supernumerary breast tissue with or without an associated nipple-areolar. 2 Hidradenitis suppurativa is an infection of the apocrine glands, most commonly of the axillae and groin. Drainage and scarring are common sequelae, and the process is often bilateral.
Lipomas are common subcutaneous fatty tumors.
They are often hard to see but easy to palpate. Most are asymptomatic and, on physical examination, appear as rubbery, mobile lesions, most commonly on the trunk, neck and upper extremities. Sebaceous cysts are less commonly found in the axillae, appearing most often on the scalp, face and trunk. Often, a central punctum is visible. Rapid growth is usually due to infection and presents as an inflamed, tender mass.