Diagnostic ability of duplex Doppler ultrasonography reling on resistive index is limited when clinical symptoms and signs of rejection are subtle or renal dysfunction is caused by other conditions such as urinary tract infection. To investigate the significance in the changes of renal pelvis, a combined analysis of resistive index and ultrasonographic findings in cases of renal pelvis dilatation and mucosal thickening was undertaken. A mean resistive index was calculated from Doppler measurements of the main, segmental and interlobar arteries. The cause of mucosal thickening was retrospectively analysed using the clinical and laboratory findings. Twenty three cases of renal pelvis dilatation and 17 cases of mucosal thickening were found in a total of 159 renal transplantation cases. In 14 of the 23 cases with renal pelvis dilatation, renal function was normal and their mean resistive index was 0.64±0.04. Pelvis and ureter dilatation caused by ureteral stenosis or compression was demonstrated in 6 cases and their mean resistive index(0.72±0.05)was increased. Mucosal thickening of renal pelvis was found in 7 of 32 cases with acute rejection and in 2 of 13 cases with chronic rejection, but their mean resistive index was not different from that of the cases without pelvic mucosal changes Three cases of acute rejection associated with urinary tract infection and 2 cases of chronic rejection in whom resistive indices were indeterminate, but mucosal thickening of the renal pelvis was prominent at ultrasonography. In renal transplant patients having indeterminate resistive index and mucosal thickening of the renal pelvis, ultrasonographic features must be correlated with the clinical and laboratory findings for an accurate diagnosis and treatment of renal dysfunction.
Arteries ; Constriction, Pathologic ; Diagnosis ; Dilatation* ; Humans ; Kidney Pelvis ; Kidney Transplantation ; Kidney* ; Pelvis* ; Retrospective Studies ; Ultrasonography ; Ultrasonography, Doppler, Duplex ; Ureter ; Urinary Tract Infections

No abstract available.
Hedgehogs ; Tinea ; Trichophyton

The authors defined precaval retropancreatic space as the space between pancreatic head with portal vein and IVC analyzed the CT findings of this space to know the normal structures and size in this space, We evaluated 100 cases of normal anbdominal CT scan to find out normal anatomic structures of precaval retropancreatic space retrospectively. We also measured the distance between these structures and calculated the minimum, maximum and mean values. At the splenoportal confluence level, normal structures between portal vein and IVC were vessel (21%), lymph node (19%), and caudate lobe of liver (2%) in order of frequency. The maximum AP diameter of portocaval lymph node was 4mm. Common bile duct(CBD) was seen in 44% and the diameter was mean 3mm and maximum 11mm. CBD was located in extrapancreatic (75%) and lateral (60.6%0 to pancreatic head. At IVC-left renal vein level, the maximum distance between CBD and IVC was 5mm and the structure between posterior pancreatic surface and IVC was only fat tissue. Knowledge of these normal structures and measurement will be helpful in differentiating pancreatic mass with retropancreatic mass such as lymphadenopathy.
Bile ; Head ; Liver ; Lymph Nodes ; Lymphatic Diseases ; Portal Vein ; Renal Veins ; Retrospective Studies ; Tomography, X-Ray Computed

No abstract available.
Carcinoid Tumor*

A rare case of traumatic bilateral anterior and posterior dislocstions of the hip wss occured by autamobile accident as a passenger injury. The right hip was dislocated anteroinferior to the righ scetabulum(neer the right obturator froamen), and the left hip was dislocated posterosuperior to the left acetsbulum with a ipsilateral femur head fracture caudsd to the fovea centralis(Fig. 1).
Dislocations ; Femur Head ; Femur ; Hip

No abstract available.

BACKGROUND: To provide some fundamental physiological basis for the physical training of pilots to improve orthostatic intolerance, cardiorespiratory responses to the symptom-limited maximal exercise loading were studied in pilots and non-pilots, and the results were compared. METHOD: Cardiorespiratory reponses to the symptom-limited maximal exercise loading by Bruce protocol was studied in 11 pilots and 11 matched controls (non-pilots). RESULTS: Comparisons of various data at maximal exercise in the pilots with those in the controls revealed that RR, VE/M2, VE/VO2, VE/VCO2, VT/VC and VE/MVV as well as HR, VO2, O2 pulse and AT showed no significant difference. CONCLUSION: The fact that the aerobic power in the pilots is not superior to that in the controls seems to emphasisze the necessity of aerobic endurance training along with muscular strength training to improve orthostatic tolerance of pilots flying modern high-performance aircrafts.
Aircraft ; Diptera ; Orthostatic Intolerance ; Resistance Training

Hemangiopericytomas are very rare tumor in the paranasal sinuses. It is vascular tumor derived from Zimmerman's pericytes. Sinonasal hemangiopericytoma is generally benign with a low potential for local recurrence of metastasis via the blood stream and lymphatic system. They account for about 1% of all vascular tumors. About 5% of the cases occur in the nasal cavity and usually show well-differentiated tumors. The treatment of choice is surgical resection. We present a case of nasal hemangiopericytoma treated by endoscopic resection.
Hemangiopericytoma* ; Lymphatic System ; Nasal Cavity* ; Neoplasm Metastasis ; Paranasal Sinuses ; Pericytes ; Recurrence ; Rivers

Unilateral nevoid telangiectasia is a rare but clinica.lly distinct dermatosis first deacribed by Zeisler in 1922. It had been also called as linear telangiectasia or unilateral telangiectasia. Wilkin suggested the term unilateral dermatomal superficial telangiectasia, in 1977. There are some reports of congenital unilateral nevoid telangiectasia but it usually occurs in women during the puberty and the third decade. Clinically it is characterized by superficial telangiectatic lesions distributed along the dermatomes uniIaterally and usually on the upper part of the body. It was reported that unilateral nevoid telangiectasia was related with elevated serum estrogen level in the many cases. We present two patients, 23-year and 25-year-old male soldiers, whose leaions were consistent with unilateral nevoid telangiectasia elinically and histopathologically.
Adolescent ; Adult ; Estrogens ; Female ; Humans ; Male ; Military Personnel ; Puberty ; Skin Diseases ; Telangiectasis*

BACKGROUND: The present study was aimed (1) to assess the effects of nitric oxide (NO) synthesis inhibitor on regional myocardial function and systemic and pulmonary hemodynamics; (2) to determine whether the blockade of the cyclo-oxygenase (COX) pathway modifies these effects on the variables, and (3) to investigate the mechanism of cardiac depression following NO synthesis inhibition in an open-chest canine model. METHODS: Twenty-five dogs of either sex were acutely instrumented under 1.6% ethrane anesthesia to measure aortic, pulmonary arterial and left ventricular pressure, pulmonary (cardiac output) and left circumflex coronary flow, and subendocardial segment length. NG-nitro-L-arginine methyl ester (L- NAME) at doses of 0.3, 1.0, 3.0, or 10.0 mg/kg i.v. was administered alone (control dogs, n = 10) or in the presence of COX inhibitor, indomethacin (10 mg/kg i.v., n = 10). Seven dogs (n = 7) received phenylephrine at doses of 0.1, 0.3, 1.0, or 3.0 microgram/kg/min i.v. to compare its hemodynamic effects with those of L-NAME. The preload recruitable stroke work slope (Mw) and percent systolic shortening (%SS) as an index of regional myocardial contractility, and the maximum segment lengthening rate (dL/dt max) and percent post-systolic shortening (%PSS) as an index of regional diastolic function, were evaluated. RESULTS: L-NAME dose-dependantly attenuated both regional systolic (Mw and %SS) and diastolic functions (dL/dt max and %PSS), whereas it caused an increase of coronary flow. L-NAME dose- dependently increased systemic blood pressure and vascular resistance as well as pulmonary arterial pressure and vascular resistance. L-NAME also reduced cardiac and stroke volume indices. Pretreatment with indomethacin did not affect the regional myocardial and systemic hemodynamic responses to L-NAME, but did blunt the coronary flow and pulmonary pressure responses. The magnitude of decreases in cardiac and stroke volume indices and Mw was greater with L-NAME than with phenylephrine (P <0.05), despite the comparable blood pressure increases. CONCLUSIONS:These results suggest (1) that NO plays a significant role in cardiac function as well as in systemic and pulmonary but not coronary, vasomotor activities, and (2) that COX products are involved in pulmonary hemodynamic responses to NO synthesis inhibition. It is also suggested that the decline in cardiac output following the NO synthesis inhibition results from a direct myocardial depressant effect of the drug.
Anesthesia ; Animals ; Arterial Pressure ; Blood Pressure ; Cardiac Output ; Depression ; Dogs* ; Enflurane ; Hemodynamics* ; Indomethacin ; NG-Nitroarginine Methyl Ester ; Nitric Oxide* ; Phenylephrine ; Prostaglandin-Endoperoxide Synthases ; Stroke ; Stroke Volume ; Vascular Resistance ; Ventricular Pressure