What is a lymphangioma?

A lymphangioma is characterized as a benign tumor formed from abnormal lymphatic vessels. This condition typically arises during the developmental stages of the lymphatic system and is often present at birth or may become noticeable in early childhood. Unlike malignant tumors, which are characterized by uncontrolled growth and the potential to spread to other areas of the body, a lymphangioma does not invade surrounding tissues aggressively, nor does it metastasize. Its benign nature means that while it can sometimes require treatment, particularly if it causes discomfort or functional issues, it is not life-threatening.

The other choices describe different medical conditions or types of tumors. A malignant tumor of the lymph nodes refers to cancer that can develop in the lymphatic system, such as lymphoma, which is distinctly different from a lymphangioma. An infection in the lymphatic system could describe lymphadenitis or similar conditions, which again do not pertain to the definition of a lymphangioma. Meanwhile, cancer originating in muscle tissue is typically referred to as sarcoma, which is unrelated to the lymphatic tissues that form a lymphangioma. These distinctions highlight the specific nature of what constitutes a lymphangioma and its classification as a benign growth.