“…[3][4][5] Primary benign and malignant neoplasms of the ligaments are rarely seen in clinical practice and are often the subject of case reports when encountered. 6 Benign tumors include lipomas, perivascular epithelioid cell tumors, fibroma, lymphangioma, paraganglioma, and mature teratoma. 6 Malignant tumors include mesothelioma, leiomyosarcoma, and several other types of sarcoma.…”