Type:
Educational Exhibit
Keywords:
Lymphoma, Cancer, eLearning, Education, CT, Gastrointestinal tract, Abdomen
Authors:
K. V. Arora1, A. Marik2, H. P. Jeswani2, S. Bhardwaj2, T. Vu2, P. Patil1, H. S. Rathore2, M. MANMOHAN1; 1Mumbai/IN, 2Navi Mumbai/IN
DOI:
10.26044/ecr2019/C-3730
Background
Hodgkin disease (HD) and non Hodgkin lymphoma (NHL) comprise of 5-6% of all malignancies.
Extranodal lymphoma refers to NHL or HD occurring in sites other than the lymph nodes,
spleen,
thymus,
tonsils,
and Waldeyer ring.[1,3] Extranodal involvement is seen commonly with NHL than HD and there has been a rise in its prevalence due to the pandemic of AIDS and the use of immunosuppressive drugs.[1,2,3]
Extranodal lymphoma accounts for 40% of the cases and can affect virtually every organ of the abdomen.
Spleen,
liver,
gastrointestinal tract,
pancreas,
genitourinary tract,
adrenal,
peritoneal cavity,
and biliary tract are involved in decreasing order of frequency.[1,3,4]
They are classified as primary when there is no nodal involvement or when there is minimal lymph node involvement and secondary when nodes other than those immediately adjacent to the primary organ are involved.[1,2,3,4]
CT is the preferred modality for its imaging because it permits assessment of lesion size,
shape,
and relation to adjacent structures.[1,2,3]
Imaging appearances of extranodal lymphoma of the abdomen can mimic other neoplastic or inflammatory conditions and misinterpretation of these imaging findings can lead to delay in diagnosis,
staging and treatment.[2,3]