The rim sign in renovascular compromise may be defined as a thin nephrographic rim outlinning a kidney with another wise faint nephrogram. Renal infarction with gelform and blood clots was induced experimentally in 5 dogsand high dose IVP and CT were performed to evaluate renal cortical rim sign after renal infarction. One expireddue to anesthetic technical failure, and one was embolized partially. So we could be obtain the result on 3 dogs.The reults were as follows; 1. The high dose IVP films show cortical rim sign on 24 hrs and 72 hrs films in twodogs. The CT films show rim sign in 3 dogs. 2. The rim sign may be visualized, if the renal artery is occuludedenough to drop perfusion presssure below the authoregulatory range. 3. The high dose IVP and early nephrogramphase are necessary for the rim sign.
Animals ; Dogs ; Infarction ; Kidney ; Perfusion ; Renal Artery

No abstract available.
Animals ; Calcitonin Gene-Related Peptide* ; Calcitonin* ; Cochlear Nucleus* ; Rats*

PURPOSE: The purpose of this study was to evaluate the accuracy of Tc-99m DTPA diuretic renal scans in children upper urinary tract. MATERIALS AND METHODS: We reviewed diuretic renal scans of 14 pediatric patients (age range: 3 days to 4 years) with unilateral hydronephrosis diagnosed by ultrasonography. Diuretic renal scan was done using Tc-99m DTPA and standardized protocol. In 3 neonates, diuretic renal scans were performed within 1 week and 3-7 months after birth. RESULTS: Six patients required pyeloplasty and eight were managed conservatively. All 6 patients requiring pyeloplasty were diagnosed as having ureteropelvic junction obstruction in the diuretic renal scan. In these 6 patients, post-operative renal scans at 3-12 months after surgery were converted to nonobstructive pattern in 5 and a nonobstructive patterns in 1. In 3 patients who underwent diuretic renal scan within 1 week after birth., nonobstructive patterns of initial scan were coverted to obstructive patterns in the follow-up scan. However, all patients with nonobstructive diuretic renal scans performed after the neonatal period did well on serial ultrasonography and showed favorable clinical outcome without progression to obstruction. CONCLUSION: Tc-99m DTPA diuretic renal scan with standarized protocol is useful in assessing suspected ureteropelvic junction obstruction in children as an initial diagnostic or post-operative follow-up modality. Nonobstructive or indeterminate scan RESULTS in the neonatal period requires follow-up scan to monitor development of the obstructive pattern.
Child* ; Follow-Up Studies ; Humans ; Hydronephrosis ; Infant, Newborn ; Kidney Pelvis ; Parturition ; Pentetic Acid* ; Radioisotope Renography* ; Ultrasonography ; Urinary Tract*

No abstract available.

No abstract available.
Extremities* ; Osteogenesis* ; Ultrasonography*

No abstract available.
Female ; HELLP Syndrome* ; Pregnancy

No abstract available.

No abstract available.
Korea*

Pick's disease is a rare neurodegenerative disorder presenting cortical type of dementia. Pick's disease shows unique clinical and pathological features, that are due to a degeneration of fronto-temporal lobes of the cerebrum. The authors experienced a case of Pick's disease in a 58-year-old male patient who had dementia symptoms for five years. The patient showed compulsive behavior since five years ago. Memory decline started from four years ago and progressed. Brain CT disclosed lobar atrophy of the cerebral gyri in frontal and temporal lobes. He died of septicemia associated with aspiration pneumonia. At autopsy, both cerebral hemispheres showed marked encephalomalacia. The gyral atrophy was moderately severe in prefrontal and anterior temporal lobes. Coronal section disclosed moderate dilatation of the lateral ventricles. Microscopically, there were marked neuronal loss in prefrontal and anterior temporal cortices. Also noted were Pick's cells and Pick's body in occasional pyramidal cells preserved.
Atrophy ; Autopsy* ; Brain ; Cerebrum ; Compulsive Behavior ; Dementia ; Dilatation ; Encephalomalacia ; Humans ; Lateral Ventricles ; Male ; Memory ; Middle Aged ; Neurodegenerative Diseases ; Neurons ; Pick Disease of the Brain* ; Pneumonia, Aspiration ; Pyramidal Cells ; Sepsis ; Temporal Lobe

The goal of surgical stone management is to achieve maximal stone clearance with minimal morbidity to the patient. Because of its efficacy, efficiency and low morbidity, extracorporeal shock wave lithotripsy(ESWL) is the first-line treatment for almost all urinary calculi. However, stone clearance after ESWL has been shown to be affected by the stone burden, location, chemical composition and kidney anatomy. Especially, the success rate for ESWL is reduced in lower pole stone(LPS). Percutaneous nephrolithotomy(PNL) and retrograde ureteroscopic intrarenal surgery(RIRS) are alternative treatment options for stones refractory to ESWL such as LPS. Although effective, PNLsubjects the patient to increased morbidity compared to ESWL and RIRS. Because of its low morbidity and relatively high success rate, RIRS for LPS is an attractive treatment modality in selective patients. We report a case of multiple renal pelvis and lower calyceal stones treated with ureteroscopy.
Humans ; Kidney ; Kidney Calculi ; Kidney Pelvis* ; Shock ; Ureteroscopy ; Urinary Calculi