A Case of Renal Angiomyolipoma Extending into the Renal Cyst Which was Confused with Renal Pelvis Tumor / 대한비뇨기과학회지

Renal angiomyolipoma is composed of mature fats, smooth muscles and abnormal blood vessels which arises mainly from renal parenchyme and compresses the calyx or protrudes the renal cortex, but which extends into the renal cyst is rare. Recently it can be easily diagnosed preoperatively by several diagnostic modalities such as ultrasonography, computed tomography and several clinical signs associated with tuberous sclerosis, although it`s clinical and radiological features are similar with renal cell carcinoma. We report a case of renal angiomyolipoma without tuberous sclerosis, extending into the renalcyst, which was confused with renal pelvis tumor in a 73 years old male.

A Case of Retroperitoneal Neurilemmoma Arising from Adjacent to Adrenal Gland / 대한비뇨기과학회지

Neurilemmoma is well-encapsulated tumor of Schwann cell origin. The majority arise in peripheral nerve or cranial nerve, and rare in retroperitoneum. Although it is incidentally detected by the advances in diagnostic procedures, especially in ultrasound and computed tomography, it is confirmed by pathologic findings. The treatment is surgical excision. We report a case of retroperitoneal neurilemmoma arising from adjacent to adrenal gland, in 45 years old female.

Immunohistochemical Study of Ras and Epidermal Growth Factor Receptor Expression in BBN Induced Bladder Tumor of Rat / 대한비뇨기과학회지

There is increasing evidence that genes encoding for signal transduction pathway, including ras and epidermal growth factor receptor( EGFR), are involved not only in normal cellular growth and differentiation but also in development and progression of malignant tumors. N-butyl-N- (4-hydroxybutyl) nitrosamine (BBN)-induced rat bladder tumor is an ideal model to study the time related gene expression in stepwise bladder epithelial carcinogenesis. We herein investigated the roles of ras and EGFR by immunohistochemical study in bladder tissues of Sprague-Dawley rats after administration of BBN. Sequential epithelial changes consisting of normal, simple hyperplasia, nodular or papillary hyperplasia, papilloma and superficial transitional cell carcinoma(TCC) were observed in rat bladders in parallel with the duration of BBN administration. The expressions of both ras and EGFR were weak in bladder epithelia of non-BBN-administered rats, whereas, immunoreactivity and number of reactive cell layer were increased in bladder epithelia of BBN-administered rats in parallel with the duration of BBN administration and progression of bladder epithelial changes. These results further support the hypothesis that ras and EGFR may have important roles in development of bladder TCC.

Extracorporeal Shock Wave Lithotripsy in 17 Children / 대한비뇨기과학회지

A total of 17 children with 24 renoureteral units underwent 58 treatment with EDAP LT-01 extracorporeal shock wave lithotripsy for urinary tract stones between January 4, 1989 and January 30, 1993. The patients were followed for over two months. The results were obtained as follows ; 1. The distribution of sex was 9(53%) in male and 8(47%) in female. The average patient age was 7 years with a range of 6 months to 16 years. 2. The location of stones were kidney in l8 cases( 75.0%) ; calyx in 10 (41.7% ) and renal pelvis in 8(33.3% ) and ureter in 6(25.0%) ; upper ureter in 2(8.3%) and lower ureter in 4( 16.7%). There were multiple renal stone in 4 and bilateral renal stone in 2. The average stone length was 9mm with a range of 3 to 10mm. 3. Of the 13 patients whose age was less than 10 years, 11(84.6%) required intravenous Ketamine anesthesia. Two patients whose age was more than 10 years and two patients less than 10 years were treated without any type of anesthesia. 4. The average numbers of treatment were 2.1 session and the average storage required was 19.4 in one session The average treatment time was 39.7 minutes. 5. The total average success rate was 87.5% 6. All of the patients were not the pre- and post- ESWL additional manipulation. ESWL complications did not require admission and surgical management. Therefore, we conclude that EDAP LT-01 is an effective and easy procedure for treatment of urinary stones in children.

A case of atypical carcinoma of the kidney / 대한비뇨기과학회지

Atypical carcinoma of the kidney arising from the epithelium of renal collecting duct is a rare disease. Clinical manifestations are mimicking that of the renal cell carcinoma. Diagnosis is confirmed by pathology with immunocytochemical study(cytokeratin) using immunoperoxidase technique. Management is not discussed here. The prognosis is poor with a relatively rapid progression of the disease. We present a case of atypical carcinoma of kidney in a 56 years old male patient with brier review of the literature.

A case of perinephric cyst / 대한비뇨기과학회지

The perinephric cyst in which cystic structures are in close relation to the kidney and renal pelvis is rare in occurrence. The causes may be obscure but most perinephric cysts around the kidney are a result of trauma, either accidental or an operative complication and doubtful origin, in which there is an encysted collection of urine or serous fluid lying beside and sometimes compressingthe kidney, and sometimes communicating with the pelvis. Clinical presentation is characterized by palpable flank mass and history of trauma. The diagnosis is made by excretory urography, ultrasonogram and CT scan. The treatment is aspiration or encleation of the cyst, or rarely nephrectomy. We report a case of perinephric cyst with hypertension developed in a 58-year-old woman presented with a child-fist sized palpable mass on right upper abdomen.

A case of ureteral ectopia draining into seminal vesicle / 대한비뇨기과학회지

Ectopic ureter entering into the seminal vesicle associated with ipsilateral renal dysplasia is a very rare developmental abnormality. Clinical manifestations consists of dysuria, hematuria, recurrent epididymitis. ejaculatory pain and perineal discomfort and the diagnosis is made by seminal vesiculogram through vas deference. Surgical excision of the seminal vesicle and the ectopic ureter is the best choice or treatment in this entity. We present a case of 34 year old infertile man with ectopic ureter entering into the seminal vesicle associated with ipsilateral renal dysplasia and contralateral cryptorchidism.

Clinical evaluation of urethral strictures following urethral catheterization / 대한비뇨기과학회지

A clinical evaluation was made on 19 patients with urethral stricture following urethral catheterization in 155 urethral stricture patients during 12 years from January. 1979 to December. 1990. The following results were obtained. I. In 155 cases of urethral stricture, iatrogenic urethral stricture was 24 cases (15.4%) of which the most common cause was urethral catheterization(19 cases) and followed by instrumentation (2 cases). 2. In 19 cases of urethral stricture following urethral catheterization. the most common site was the anterior urethra (bulbous 10 cases. pendulous 7 cases) and multiple strictures showed 5 of 17 anterior urethral strictures. 3. In 19 cases, 16 cases (84.2%) occurred in patients who have kept the urethral catheter within seven days and 18 cases (94.7%) were inserted and cared the urethral catheter by non-urologist. 4. Treatment was performed internal urethrotomy in 16, dilatation in 2 and catheter indwelling during 1 week in 1. 5. In 24 cases of iatrogenic urethral stricture. mean number of dilation to recurrent strictures after primary procedure had required O.5 time. From our results. we suggest that education for the careful insertion and method of care for the urethral catheter to non-urologist is least likely to induce urethral stricture formation.

A case of the renal medullary fibroma / 대한비뇨기과학회지

Renal medullary fibromas which are arisen from the interstitial cell of the renal medulla show small, multiple nodules on autopsy Findings over age 50, but they are very rare clinically. thus several cases have been reported until 1982. When the tumors are large. their clinical presentation is characterized by loin pain, hematuria and palpable mass. The preoperative diagnosis with radiologic studies is very difficult and the confirmative diagnosis was made with pathologic finding. Nephrectomy has been the most common useful treatment and local excision can be used. We report a case of renal medullary interstitial cell fibroma in a 17-year-old girl presented with a child-head sized palpable mass on the left upper quadrant.

Three cases of the emphysematous pyelonephritis / 대한비뇨기과학회지

Emphysematous pyelonephritis is a rare complication of acute pyelonephritis that occurs in diabetics or urinary obstruction and spontaneous gas formation around renal parenchyme. Diagnosis. in appropriate clinical setting. is confirmed radiographically. Plain film demonstrates a surprising pneumonephrogram, mottled gas shadow in the renal parenchyme as well as perirenal gas. Surgical intervention after unsuccessful antibiotics and conventional medical measurement is necessary. We experienced 3 cases of emphysematous pyelonephritis which occurred in diabetic women with brief review of the literature.