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Multicentric primary diffuse large B-cell lymphoma in genitourinary tract detected on 18F-fluorodeoxyglucosepositron emission tomography with computed tomography: An uncommon presentation of a common malignancy

1 Department of Nuclear Medicine, Apollo Hospitals, Chennai, Tamil Nadu, India
2 Department of Pathology, Apollo Hospitals, Chennai, Tamil Nadu, India

Correspondence Address:
Shelley Simon,
Department of Nuclear Medicine, #21 Greams Lane, Off. Greams Road, Apollo Hospitals, Chennai, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/wjnm.WJNM_45_20

Primary extranodal lymphomas (ENLs) are lymphomas with no or minor nodal involvement and a dominant extranodal component originating from any organ. Primary ENL originating in the genitourinary tract is extremely rare. Diffuse large B-cell lymphoma (DLBCL) is the most frequent histological subtype in primary genitourinary lymphoma. Lymphomatous involvement of genitourinary system organs is common in the setting of disseminated disease. Herein, we present a unique case of primary multicentric extranodal DLBCL of the urogenital system involving ureter, seminal vesicle, and penis detected on18fluro-deoxyglucose positron emission tomography with computed tomography, and to the best of our knowledge, it is the first case report with multiorgan involvement within a single (urogenital) organ system in a patient without disseminated disease, i.e., with no other nodal or extranodal organ system involvement.

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