Non-Hodgkin's lymphoma: A case of testis lymphoma metastasized to the gallbladder

Testis lymphoma (diffuse large B cell lymphoma) metastasized to the gallbladder. The gall bladder is rarely involved in cases of the malignant lymphoma, and lymphoma metastasis from the testis to the gallbladder has not been previously reported. These reports may possibly change by the introduction of PET/CT. Furthermore, although it was a struggle to diagnose this particular case, there is a possibility that we may have been able to recognize metastasis from the testis at an earlier stage if PET/CT had been conducted.