E1883. Hodgkin Lymphoma: What the Oncologist Wants to Know from Your CT Report
  1. Tahani Ahmad; Dalhousie University; IWK Health Centre
The staging of Hodgkin Lymphoma is mainly done based on CT imaging. It is very critical to accurately assess sites of nodal and extra-nodal disease involvement to assign accurate staging which will guide treatment. Similarly, assessment of treatment response is again made based on CT scan, and thus, knowledge of the guidelines for CT evaluation of disease involvement at follow-up imaging is of paramount importance. Target lesions should be clearly identified in the first CT and used for follow-up imaging. Bulk disease, non-measurable and measurable disease should be correctly identified.

Educational Goals / Teaching Points
By the end of this exhibit, the reader should be able to understand the staging system of lymphoma and the definition of bulk disease, measurable disease, and non-measurable disease; calculate the perpendicular product PPD and SPPD (sum of perpendicular products); and be confident in assessing response to treatment (complete response versus very good partial response, versus partial response versus no response).

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
CT scan of the head, chest, neck, abdomen, and pelvis. Hodgkin Lymphoma. Staging at presentation and follow-up CT imaging to assess treatment response.

This is a very important exhibit to help the radiologists (pediatric, adults, and onco-radiologists), trainees, and oncology colleagues understand the guidelines for imaging of HD. The exhibit will put everybody on the same page and enhance the multidisciplinary approach in managing oncology patients.