Gastrointestinal Manifestations of Immunodeficiency: Imaging Spectrum. May-June 2022-RG210169-2022-Katabathina-SG

RG210169-2022-Katabathina-SG

Pdf Summary

The study guide for Test 210169, focusing on the gastrointestinal manifestations of immunodeficiency and their imaging spectrum, presents multiple-choice questions that explore key features and characteristics identified through imaging techniques. <br /><br />1. It addresses the distinctive "ribbon appearance" of small-bowel loops, which is primarily seen in chronic graft versus host disease (GVHD) (Option b). This characteristic appearance is typically evaluated during barium follow-through studies.<br /><br />2. Pseudomembranous colitis, another condition discussed, is characterized by bowel wall edema (Option c), as depicted in the referenced Figure 12 from the study guide.<br /><br />3. In the context of gastrointestinal (GI) histoplasmosis, the characteristic finding is the presence of calcified mesenteric lymph nodes (Option a).<br /><br />4. The guide also covers the imaging presentation of multiple enhancing lymph nodes, frequently encountered in posttransplant lymphoproliferative disorder (PTLD) (Option d). This condition arises in individuals with immunodeficiencies and can be effectively identified through imaging studies.<br /><br />5. Lastly, the association of gastrointestinal lymphomas in immunodeficient patients with specific viral infections is highlighted, with Epstein-Barr virus (EBV) being linked to these lymphomas (Option d).<br /><br />These focus areas suggest a comprehensive evaluation strategy for identifying and understanding the various manifestations of gastrointestinal disorders in immunodeficient patients through imaging. The study guide prompts learners to consider the correlation between specific conditions and their imaging characteristics, enhancing diagnostic acumen. To obtain SA-CME credit for this learning activity, individuals are encouraged to visit the RSNA’s official learning center and complete the test related to this study.

Keywords

gastrointestinal manifestations

immunodeficiency

imaging spectrum

chronic graft versus host disease

pseudomembranous colitis

GI histoplasmosis

posttransplant lymphoproliferative disorder

Epstein-Barr virus

gastrointestinal lymphomas

RSNA learning center