Primary Non-Hodgkin Lymphoma of Liver

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Abstract
Primary non-Hodgkin lymphoma (nhl) of liver is a very rare malignancy. Here, we report the case of a 65-year-old man who presented with constipation and right groin pain of 2 months’ duration. A computed tomography (ct) scan of the abdomen incidentally detected multiple hypodense nodules in both lobes of the liver. Diagnosis of primary nhl of liver was made using ultrasound-guided biopsy. Extensive investigations—which included bone marrow biopsy; fluorescence in situ hybridization; flow cytometry; ct scan of chest, abdomen, and pelvis; and whole-body positron-emission tomography—showed no involvement of bone marrow, lymph nodes, spleen, or any other organ. The patient is currently being treated with a chop-r (cyclophosphamide–doxorubicin–vincristine–prednisolone/rituximab) regimen. The case has many unique features, including normal liver function tests, especially that for lactate dehydrogenase; no type B symptoms; and negative serology for viruses. The case demonstrates that primary hepatic lymphoma should be considered in the differential diagnosis of space-occupying liver lesions in presence of normal levels of alpha-fetoprotein and carcinoembryonic antigen. The literature is extensively reviewed.

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