E2050. Abdominopelvic Lymphoma: Jack of All Trades or Hidden Master of Many?
Authors
Harit Kapoor;
University of Kentucky
Sindhura Tadisetty;
University of Kentucky
Andrew Barty;
University of Kentucky
Mariam Moshiri;
Vanderbilt University Medical Center
Aman Khurana;
University of Kentucky
Background
Lymphoma is a diverse group of diseases involving most organs and soft tissues in the human body, including the skin. Therefore, it is included in nearly all differentials for mass lesions and focal, infiltrative, or diffuse organ involvement. Lymphoma does not respect soft tissue planes and therefore could look like fibrosis and other benign entities, thus making it challenging for early radiology learners. The purpose of this exhibit is to provide a comprehensive review of common and uncommon imaging findings of various types of lymphomas in the abdomen and pelvic regions using multimodal and cross-sectional imaging techniques.
Educational Goals / Teaching Points
The educational goals are to understand the incidence and prevalence of lymphoma based on general location and age and to review the pathophysiology of lymphomas and predisposing factors such as some infections or immunosuppression. The imaging findings will be reviewed using a case-based approach to show lymphomas from abdomen and pelvis. Unusual presentations including epidural infiltrative lymphoma, ovarian and peritoneal disease, and more frequently encountered nodal, thoracic, renal, and bowel lymphoma will be featured. The imaging findings of resolution of lymphoma using examples of “melt away” disease after chemotherapy will also be reviewed. Finally, the exhibit will summarize the most common presentations based on the organ involved using a tabular format.
Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Exhibit will include grayscale, CT, and PET/CT images of common imaging appearances (mass or mass-like, infiltrative or miliary, loss of typical tissue interfaces, circumferential thickening) using examples of small bowel lymphoma, mediastinal lymphoma, and renal lymphoma. Uncommon imaging findings will be reviewed using examples of peritoneal lymphomatous deposits, ovarian lymphoma and large mesenteric and bowel conglomerates
Conclusion
Interpreting imaging findings of abdominopelvic lymphomas may be challenging to early radiology learners due to varied imaging findings, different imaging appearances, lack of respect for soft tissue planes and diffuse involvement of soft tissues. With this exhibit, we hope to provide a comprehensive review of common and uncommon lymphoma imaging findings in the abdomen and pelvis and treatment responses using a case-based approach.
