Sofia Otero MBBCh, FRCR, Presenter: Nothing to Disclose

Kanchana Rajaguru MD, FRCR, Abstract Co-Author: Nothing to Disclose

Monika Rowe MD, PhD, Abstract Co-Author: Nothing to Disclose

This education exhibit will: 1. Provide a structured review of the clinical, pathological, and imaging features (using a multi-modality approach that includes US, CT, MRI and PET) of extranodal lymphoma of the head & neck using a series of cases organised by their anatomical site. 2. Give a list of differential diagnoses for a lesion at each anatomical location. 3. Include cases that illustrate complications associated with these neoplasms, which have the potential to cause diagnostic ambiguity at presentation, namely infection.

Lymphoma is the second most common malignant neoplasm of the head and neck, and one of the most common sites for extranodal disease. This exhibit will describe the following features of lymphoma for each of the commonly affected extranodal sites within the head and neck: 1. Clinical features 2. Pathological features 3. Imaging features, using a multi-modality approach that includes US, CT, MRI and PET imaging 4. Differential diagnosis The anatomical sites to be described include: 1. Waldeyer's ring 2. Sinonasal passage 3. Oral cavity/palate 4. Salivary glands 5. Orbit 6. Face/soft tissues 7. Thyroid Some cases will be included to illustrate complications of these neoplasms, e.g. infection, which can cause diagnostic ambiguity in these patients at presentation.

http://abstract.rsna.org/uploads/2014/14009296/14009296_eo1v.pdf

Otero, S, Rajaguru, K, Rowe, M, Extranodal Lymphoma of the Head and Neck: A Multi-Modality Review.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14009296.html