Nodule (dermatology)

Nodule (dermatology)

A nodule in dermatology is a type of abnormal growth or lump that can appear on the skin. It is typically larger than 1 cm in diameter and can be felt as a hard mass distinct from the skin around it. Nodules can occur in various parts of the body and can be associated with a variety of diseases and skin conditions.

Characteristics[edit | edit source]

Nodules are typically larger than 1 cm in diameter and can be felt as a hard mass distinct from the skin around it. They can be located in the epidermis, dermis, or subcutaneous tissue. The color, texture, and other characteristics of a nodule can vary depending on the underlying cause.

Causes[edit | edit source]

Nodules can be caused by a variety of conditions, including infections, inflammatory diseases, neoplasms, and cysts. Some common causes of nodules include acne, rheumatoid arthritis, and cancer.

Diagnosis[edit | edit source]

The diagnosis of a nodule typically involves a physical examination and may also include biopsies, imaging studies, and other tests. The exact diagnostic process can vary depending on the suspected underlying cause of the nodule.

Treatment[edit | edit source]

The treatment of nodules depends on the underlying cause. Treatment options may include medications, surgery, and other therapies. In some cases, nodules may resolve on their own without treatment.