Aggressive musculo-apo neurotic fibromatosis, findings in image in a case of posttraumatic involvement of the scalene muscle

Musculoaponeurotic fibromatosis is a well-differentiated benign tumoral condition of fibroblastic origin that is classified as a tumor of the soft tissue. These lesions present an intermediate biological behavior between the benign fibroblastic tumors and fibrosarcoma, and have the capacity of presenting local relapse, but never metastasis. One case of post-traumatic musculoaponeurotic fibromatosis of the scalene muscle is presented by the study of the ultrasonography, CT and MRI. The imaging findings are not characteristics, but they are useful to carry out the differential diagnosis and extension study. (Author) 14 refs