RESUMO
This case study discusses a patient presenting with urinary retention presumed secondary to benign prostatic hyperplasia (BPH). Suspicion for an underlying problem was raised when a second instance of urinary retention occurred after undergoing medical treatment and TUVP to correct BPH. Extensive workup resulted in diagnosis of small cell lung carcinoma with metastases and discovery of a large metastatic mass in the rectovesical pouch. The mass caused obstructive uropathy and renal failure which was managed with stenting and an indwelling catheter. Further investigation by practitioners may be required in patients whose urinary symptoms do not improve after standard BPH treatments.
RESUMO
We describe a renal arteriovenous malformation in a patient with a 1-month history of flank pain. Imaging studies were interpreted as being consistent with renal-cell carcinoma. However, Doppler ultrasonography demonstrated turbulent blood flow, and selective renal angiography confirmed the diagnosis of an arteriovenous malformation. Embolization relieved the pain. This case calls attention to the need to consider arteriovenous malformations in the differential diagnosis of central homogenously enhancing renal lesions.
