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Non-Hodgkin lymphoma of the bladder.

Lymphomas of the bladder are rare lesions, representing approximately 0.2% of the primary neoplastic lesions and approximately 1.8% of the secondary lesions in this organ. The authors report the case of a 41-year old patient with secondary lymphoma of the bladder occurring 2 years after treatment for non-Hodgkin lymphoma, diagnosed by biopsy of cervical lymph node, and analyze the clinical and prognostic aspects of bladder lymphomas.