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[Isolated tuberculosis of the liver coincident with renal cell carcinoma].

The macronodular form of hepatic tuberculosis is a very rare disease characterized by tumor-like tuberculomas or abscesses. Correct diagnosis is hampered by ambiguous clinical and radiological findings. We present a case of solitary tuberculosis of the liver without evidence of extrahepatic tuberculous manifestations. The lesions mimicked metastatic disease of a coincidentally found kidney tumor. Diagnosis could only be made by histologic examination of repeated percutaneous liver biopsies. Antituberculous treatment lead to a complete retrogression of hepatic changes while the kidney tumor (histologically a renal cell carcinoma) was removed surgically. As a liver biopsy provides the only means of diagnosing local nodular tuberculosis, which is treatable, we conclude that it should be performed on every unclear tumorous lesion of the liver.