PURPOSE: To evaluate the role of antegrade balloon dilatation and uteteral stenting in benign ureteral strictures. METHODS AND MATERIALS: Percutaneous antegrade balloon dilatation was attempted in 46 patients with benign ureteral strictures. The underlying causes of the strictures were urinary tract tuberculosis in 20 patients, congenital ureteropelvic junction obstruction in eight, ureteroneocystostomy or ureteroileostomy state in five, postoperative or post-extracorporeal shock wave lithotripsy state for ureteral calculi in eight, ureteral injury during surgery in four, and retroperitoneal fibrosis in one. RESULTS: Antegrade balloon dilatation was performed with initial technical success in 43 patients but the procedure was aborted in the remaining three with urinary tract tuberculosis due to the failure in passing a guidewire through the stenotic lesions. Intravenous urograms obtained 4-76 months after the procedure showed improvements in 76%(13/17) with urinary tract tuberculosis, in 63%(5/8) with congenital ureteropelvic junction obstruction, in 88%(7/8) with strictures associated with ureteral calculi, and in 100%(4/4) with iatrogenic ureteral injury. The results were relatively poor in strictures of the ureteral anastomosis(1/5) and in ureteralstrictures associated with retroperitoneal fibrosis(0/1). CONCLUSION: Antegrade balloon dilatation of the urinary tract combined with ureteral stenting was an effective technique for the management of the benign ureteral strictures.
Constriction, Pathologic* ; Dilatation* ; Humans ; Lithotripsy ; Retroperitoneal Fibrosis ; Shock ; Stents* ; Tuberculosis ; Ureter* ; Ureteral Calculi ; Urinary Tract

PURPOSE: To evaluate US and CT characteristics of small renal cell carcinomas with diameter less than 3cm. MATERIALS AND METHODS: We retrospectively analysed US and CT findings of the small renal cell carcinomas which were surgically confirmed. We analysed echogenicity, peritumoral hypoechoic rim, intratumoral cysts on US. We analysed CT with viewpoints of tumor margin, growth pattern, renal contour change, attenuation on pre- and postcontrast scan, homogeneity, and perirenal changes. RESULTS: The US characteristics of the small renal cell carcinomas were hyperechogenicity(89%), peritumoral hypoechoic rim(66%) and intratumoral cysts(44%). They had relatively well-defined margin(90%), smooth and round contour(90%), endophytic growth pattern(65%), and outward bulging of renal contour(75%) on CT. They had iso- or high attenuation(87%) on precontrast CT, and were relatively homogeneous low-attenuated on postcontrast CT. CONCLUSION: The constellation of US and CT findings may be helpful in the diagnosis and understanding of the internal architecture of the small renal cell carcinomas.
Carcinoma, Renal Cell* ; Diagnosis ; Retrospective Studies

No abstract available.
Hemoperitoneum*

Adenoid cystic carcinoma of the major salivary gland is a relatively rare tumor which is well known for its high local recurrence rate and frequent distant metastasis. Metastasis of this tumor to kidney has not been reported previously to our knowledge. We report two cases of renal metastasis from adenoid cystic carcinoma of the salivary gland.
Adenoids* ; Carcinoma, Adenoid Cystic* ; Kidney ; Neoplasm Metastasis* ; Recurrence ; Salivary Glands*

Mixed Mullerian tumors are rate uterine malignancy and occur primarily in postmenopausal women. We have experienced three case of pathologically proven mixed Mullerian tumor. Two cases had prior history of pelvic irradiation for uterine cervical carcinoma. We suggest that mixed Mullerian tumor should be suspected when an enlarged uterus with polypoid masses in the uterine cavity are initially observed in postmenopausal women who had history of pelvic irradiation.
Female ; Humans ; Magnetic Resonance Imaging* ; Uterus

Mixed Mullerian tumors are rate uterine malignancy and occur primarily in postmenopausal women. We have experienced three case of pathologically proven mixed Mullerian tumor. Two cases had prior history of pelvic irradiation for uterine cervical carcinoma. We suggest that mixed Mullerian tumor should be suspected when an enlarged uterus with polypoid masses in the uterine cavity are initially observed in postmenopausal women who had history of pelvic irradiation.
Female ; Humans ; Magnetic Resonance Imaging* ; Uterus

To assess the value of CT and MR in the detection of local tumor recurrence after hysterectomy, we evaluate CT and MRI findings of the vaginal stump in fifteen patients who underwent hysterectomy for uterine cervical carcinoma (N=14) or endometrial carcinoma (N=1). The presence of stump recurrence was confirmed by needle biopsy in 7 patients and by reoperation in 1 patient. The absence of stump recurrence was diagnosed by needle biopsy in 3 patitients and by clinical follow-up in 4 patients. In eight patients with vaginal stump recurrence, six patients were correctly diagnosed by CT and seven patients by MRI. In remaining seven patients who had no evidence of tumor recurrence, four patients were correctly diagnosed with CT and all the rester patients with MRI. ON the bases of our results, MRI seems to be superior to CT in the evaluation of local tumor recurrence after hysterectomy.
Biopsy, Needle ; Endometrial Neoplasms ; Female ; Follow-Up Studies ; Humans ; Hysterectomy* ; Magnetic Resonance Imaging* ; Recurrence* ; Reoperation

To assess the value of CT and MR in the detection of local tumor recurrence after hysterectomy, we evaluate CT and MRI findings of the vaginal stump in fifteen patients who underwent hysterectomy for uterine cervical carcinoma (N=14) or endometrial carcinoma (N=1). The presence of stump recurrence was confirmed by needle biopsy in 7 patients and by reoperation in 1 patient. The absence of stump recurrence was diagnosed by needle biopsy in 3 patitients and by clinical follow-up in 4 patients. In eight patients with vaginal stump recurrence, six patients were correctly diagnosed by CT and seven patients by MRI. In remaining seven patients who had no evidence of tumor recurrence, four patients were correctly diagnosed with CT and all the rester patients with MRI. ON the bases of our results, MRI seems to be superior to CT in the evaluation of local tumor recurrence after hysterectomy.
Biopsy, Needle ; Endometrial Neoplasms ; Female ; Follow-Up Studies ; Humans ; Hysterectomy* ; Magnetic Resonance Imaging* ; Recurrence* ; Reoperation

When the non-union gap in a long bone is more than half of the diameter of the bone at that level, it presents a significant challenge to traditional bone grafting technique. Even if there are several good ways for this problem, such as shortening, traditional various bone grafting, electrical stimulation and free vascularized bone graft, most of these techniques have some difficulties to maintain the stability of fracture post-operatively, and we have to keep their extremities into a cast or external fixator so long. So we have attempted to treat the large osseus gap non-union in long bone with fixation of heavy duty or condylar plate on one side of fracture for fracture stability, a long tibial corticocancellous strut graft on the other side of fracture for fracture stability and rapid bony union, and extensive cancellous chip bone graft between the plate and tibial graft to enhance the bony union. We have experienced 9 cases of large osseus gap non-union in long bone with this technique from March 1981 to September 1986 at the department of orthopaedic surgery, St. Mary's hospital, Catholic University Medical College. 1. Their, 7 males and 2 females, average age was 38 years old, with a range of 24 to 53 years old. The distribution of the involved bone was 6 femur, 2 humerus, 1 radius and ulna with 1.4 years of average duration of non-union, ranged from 7 months to 2.4 years. The average gap from normal bone to normal bone was 4.8cm, with a range of 2.7cm to 7.4cm. The average number of previous surgical procedures was 4, with a range of 2 to 7. Four of the nine patients had quiescent osteomyelitis. 2. Post-operative immobilization with splint or cast was applied for 6 weeks for upper extremity and 8 weeks for lower extremity followed by active R.O.M. exercise and non-weight bearing crutch walking. 3. Five of the nine cases(55.6%) had completely bony union. This occured on an average 8 months post-operatively and was faster in the forearm bones and femur than in the humerus. An additional cancellous bone graft was done in two. But other two of the patients had subsequent amputation because of recurrent and uneontrollable osteomyelitis stirred up by the surgery. 4. This procedures was proved to be one of valuable adjuvant method in treatmqnt of large osseous gap non-union of long bones.
Amputation ; Bone Transplantation ; Electric Stimulation ; External Fixators ; Extremities ; Female ; Femur ; Forearm ; Humans ; Humerus ; Immobilization ; Lower Extremity ; Male ; Methods ; Osteomyelitis ; Radius ; Splints ; Transplants ; Ulna ; Upper Extremity ; Walking

The experimental study was performed to evaluate the microvascular changes in post irradiation injury of small intestine. With a total of 28 rats, 24 rats were irradiated on right upper quadrant of abdomen with a single dose of 2000 rads and each group of 4 rats were followed up in 1,2,4,5,12, and 16 weeks and remaining 4 rats were used for normal control group. Evaluation of the microvascular changes were done by observing both microangiographic and histopathologic findings in groups of each follow-up week. The results were as follows; 1. The main microangiographic findings were stretching and diffuse narrowing of vessels and extravasation of microbarium in post-irradiation 1-4 weeks, and focal narrowing and dilatation, irregular branching pattern and tortuosity of vessesl in in post-irradiation 8-16 weeks. Poor opacification of capillary network was continuously observed in all follow-up period. 2. The degree of vascular tortuosity in microangiography was consistent with the degree of vascular wall thickening in histopathology. 3. It is inferred that results in this experimental study with microangiography can be used as a guide line for further studies of post-irradiation injury of small intestine.
Abdomen ; Animals ; Capillaries ; Dilatation ; Follow-Up Studies ; Intestine, Small ; Radiation Injuries ; Rats