[Primary renal malignant lymphoma in a hemodialysis patient : a case report].

A 71-year-old female on hemodialysis was referred to our hospital for a left renal mass which was incidentally found during a medical check-up. Abdominal computed tomography with intravenous contrast enhancement showed an iso-dense enhanced mass. Under the diagnosis of renal cell carcinoma, retroperitoneoscopic radical nephrectomy was performed.

[Retention cyst of the prostate in a patient with urinary difficulty].

A 54-year-old man visited our clinic for dysuria. Transabdominal ultrasonography revealed a multilocular cyst at the neck of the bladder, and a cystoscopy revealed obstruction of the neck of the bladder. Dysuria improved after tamsulosin treatment was initiated, and abdominal magnetic resonance imaging (MRI) showed disappearance of the cyst.

[Primary small cell carcinoma of the bladder in which the bladder preservation was achieved by chemotherapy and transurethral resection].

A 78-year-old man was referred to our hospital for asymptomatic gross hematuria on April 16, 2007. Cystoscopy and abdominal computed tomography revealed a nonpapillary tumor at the upper area of the bladder. Abdominal and thoracic computed tomography showed no lymph nodes and no metastasis to other organs.

[Renal actinomycosis with pneumonia].

A 55-year-old man was hospitalized for pneumonia. His fever did not subside despite administration of antibiotics ; therefore, he was referred to our hospital. A chest radiograph and thoracic computed tomography showed multiple tubercles ; abdominal computed tomography (CT) showed left renal abscess.

[Urethral disruption treated by echo guided endoscopic management: a case report].

We report a case of 63-years-old man with a chief complaint of urinary retention and urethral meatal bleeding due to straddle injury. Urological examination revealed proximal bulbous urethral disruption with 1 cm gap, and then cystostomy was placed. Afterwards, urethral disruption was treated by echo guided endoscopic urethroplasty.

[A case of multiple renal hemangioma].

A 53-year-old man presented with a right heterogeneous renal tumor detected by ultrasonography (US) on a routine health check. He had no complaint. Computed tomography (CT) revealed a 4 cm-diameter heterogeneous tumor located near a calcification of the right kidney, which was not so enhanced.

[Intraluminal ureteral hematoma complicating anticoagulant therapy].

Intraluminal ureteral hematoma is a rare disease and only a few cases have been previously described. We report a case of intraluminal ureteral hematoma induced by anticoagulant therapy. A 65-year old man having the oral anticoagulant therapy for prevention of secondary thrombolism following atrial fibrillation was referred to us for gross hematuria.