Renal Tuberculosis: The Masquerader
A-39-year-old man was admitted to our institution due to flank pain. He had history of low grade fever and oligouria since 5 months prior. He had no complaint of cough, dyspnea, or night sweat. He was a non smoker and had no past medical history of tuberculosis. Previous 4 months abdominal ultrasound showed left pelvocaliectasis and ureteral dilatation with suspicion of left ureteral stenosis. Ureterolithiasis could not be excluded. No prostate enlargement or vesicolithiasis was seen. Intravenous pyelography (IVP) examination demonstrated similar finding. Initial laboratory blood examination showed anemia (10.7 g/dl), leukocytosis (14,080/ul), increased in serum creatinin (4.2 mg/dl), ureum (227 mg/dl), and calcium (6.78 mg/dl). Serology examinations were negative for HIV, HBsAg, anti HCV and blood culture had no growth. Urinary examination revealed severe leucocyturia, hematuria, and negative for bacteria, nitrite and cast. Urine culture was positive for Candida glabrata. Pulmonary X-ray suggested right pleural fibrotic. He was initially diagnosed as multiple myeloma with fungal infection. Nevertheless, additional peripheral blood smear showed neither rouleaux formation nor blast. He underwent percutaneous nephrostomy and got micafungin intravenously. Instead of improving, the patient deteriorated and transferred to intensive room. We then explored the possibility of TB infection. Further examination revealed positive for Mycobacterium tuberculosis in urinary polymerase chain reaction (PCR) test. Tracheal sputum examination was positive for acid fast bacilli staining. There was low level of serum vitamin D2 (5.8 ng/ml). He got TB treatment with rifampicin, isoniazid, pyrazinamide, and ethambutol. Unfortunately, the patient eventually succumbed.
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