Bing Wang MD, Presenter: Nothing to Disclose

Alfred Leo Weber MD, Abstract Co-Author: Nothing to Disclose

Paul Albert Caruso MD, Abstract Co-Author: Nothing to Disclose

Baiju Shah MD, Abstract Co-Author: Nothing to Disclose

Hugh D. Curtin MD, Abstract Co-Author: Nothing to Disclose

To demonstrate the clinical, imaging, and pathological findings of different head and neck nonRMS in children and adolescents.

Method: We evaluated 20 cases of nonRMS in 2-20 year-old. All cases were studied with CT and/or MRI, and in some cases PET-CT. Representative cases of different type of sarcomas were evaluated including osteosarcomas (3), chondrosarcomas (2), synovial sarcomas (3), the Ewing's sarcoma family of tumors (4), spindle cell sarcomas (undifferentiated) (2), alveolar soft part sarcomas (1), fibrosarcomas (2), and neurofibrosarcomas (4). Pertinent differential diagnosis of imaging findings will be presented with the illustrated cases. Results: On CT the densities were homogeneous with variable enhancement but usually low to medium. Calcification was encountered in osteosarcomas, chondrosarcomas, and in some large tumors with necrosis. MRI revealed low signal intensities (SI) relative to muscle on T1-WI, variable increased SI on T2-WI, and slight to moderate enhancement on post-Gadolinium images. Tumor necrosis was related to size of tumor and was observed in large tumors. Local lymph node metastases are less common than in carcinomas of the head and neck. Conclusion: We present the imaging findings of pediatric nonRMS and evaluated them for size, margins, location, bony erosion, and metastases.  

http://abstract.rsna.org/uploads/2014/14012150/14012150_ucgt.pdf

Wang, B, Weber, A, Caruso, P, Shah, B, Curtin, H, Pediatric Head and Neck Nonrhabdomyosarcomatous Sarcomas (nonRMS): Imaging, Clinical and Pathological Assessment.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14012150.html