Imaging of Soft Tissue Neoplasms in the Adult: Benign Tumors

This discussion reviews the spectrum of benign soft tissue tumors usually found in adults. Lesions most commonly identified in the pediatric population, tumorlike masses, and malignant tumors are discussed in other articles in this issue. Rather than presenting a complete review, the focus of this article is on benign tumors in which the diagnosis may be confidently made or strongly suggested on the basis of imaging. Diagnoses presented include those for lipoma, lipoma variants, giant cell tumor of the tendon sheath, pigmented villonodular synovitis, superficial and deep fibromatoses, elastofibroma, and peripheral nerve sheath tumors.