An 81-year-old man presented with abdominal bloating for one month. His family physician treated him for diverticulitis but a 7-day course of antibiotics did not improve his condition. Physical examination showed no peripheral lymphadenopathy and no hepatosplenomegaly. A CT scan revealed that there were masses in the abdomen and chest. An exploratory laparotomy found multiple enlarged mesenteric lymph nodes. A lymph node biopsy was done and is depicted in Figs. 41.1 and 41.2. Fig. 41.1


Follicular Lymphoma Mantle Cell Lymphoma Malt Lymphoma Mantle Zone Abdominal Bloating 
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