Diagnosis of Primary Hepatic Lymphoma in a 55-Year-Old Male Patient Presented With Pain in the Right Hypochondrium: A Very Rare Case

Primary hepatic lymphoma (PHL) is a rare subtype of diffuse large B-cell lymphoma (DLBCL). A 55-year-old male patient presented to us with jaundice and right upper quadrant pain. Investigations showed elevated alkaline phosphatase, lactate dehydrogenase, total bilirubin, normal alanine transaminase, and negative viral profile. Sonographic and computed tomographic scans show hepatosplenomegaly with hypodense lesion in liver associated with lymph nodes enlargement in the region of porta hepatis celiac axis, mediastinal and axillary lymphadenopathy. On immunohistochemistry, cells were positive for cluster of differentiation (CD)-19, CD-20, CD-21, c-myelocytomatosis oncogene (c-MYC), B-cell lymphoma 2 (Bcl-2), multiple myeloma oncogene-1 (MUM-1), same as B cell markers so it is diagnosed as PHL. DLBCL especially PHL shall be considered among the differentials of space-occupying lesions of liver. Early diagnosis of primary hepatic lymphoma is not a difficult task if excisional lymph node biopsy is taken following detection on ultrasound or CT scan which will lead to improved treatment, improvement in survival, and cost-effectiveness with good prognostic outcomes.