Nodule (NOJ yule)

A nodule is a solid, deep-seated mass located in the dermis of subcutaneous tissue which produces an elevation on the skin surface. Nodules are often described as "marble-like." Inflammatory processes, such as acne, can produce nodules. Nodules can also be neoplasms (abnormal growths characterized by uncontrolled cellular proliferation), such as basal or squamous cell carcinomas. Large nodules are often called tumors. Skin tumors may be benign or malignant.