Which of the following is NOT an indication of renal arteriography?
preparation for donor nephrectomy
advanced RCC in the right kidney
renal artery stenosis
oncocytoma in the left kidney
Correct Answer :
D. oncocytoma in the left kidney
diagnosis and treatment of oncocytoma don`t require renal arteriography.
Related Questions
What is false concerning Tc-99m DMSA?
diseases affecting the proximal convoluted tubules inhibit DMSA uptake
it is ideal to assess UPJ obstruction in adults
gentamicin and cisplatin inhibit the DMSA uptake
it allows better assessment of differential renal function
Which statement is true concerning renal ultrasonography?
end-stage renal failure kidneys look small and hypoechoic
it is more accurate on diagnosing cystic lesions than solid masses
it is able to detect tumors as small as 2 mm
cortical carbuncle might be mistaken for hydronephrosis
What matter does correspond to zero Hounsfield units?
air
water
fat
bone
Using CT scanning, which solid kidney mass is sharply demarcated with uniform enhancement and often has a central scar?
RCC
metastases
angiomyolipoma
oncocytoma
What is (are) the characteristic finding(s) of testicular torsion on color Doppler ultrasonography?
the classic blue dot sign
thick, short, edematous spermatic cord
absence of intratesticular blood flow
increased epididymal blood flow
What is correct concerning sound waves?
The higher the frequency, the deeper tissue penetration
The higher the frequency, the better the axial resolution
low-frequency transducers are of 6 to 10 MHz
the deeper tissue penetration, the better axial resolution
To which class of Bosniak system of renal cysts does an oval renal parenchymal cyst of uniform water density filling, with attenuation of ≤ 20 HU, thin, non-calcified wall, and no contrast enhancement; belong to?
class 1
class 2
class 3
class 4
What nuclear medicine study can diagnose interstitial nephritis?
DTPA
DMSA
gallium-67
MAG-3
Which condition could present as a filling defect in the bladder on IVU study?
blood clot
fibro-epithelial polyp
sloughed renal papilla
all of the above
What is false concerning ureteric jets?
obstruction of the upper urinary tract may increase renal pelvis pressure and delay or decrease pelvis peristaltic rates
measured by color Doppler flow mapping in transverse scans at the suprapubic region
patients with ureteral stents are the ideal
adequate hydration is necessary
Which statement is false regarding magnetic resonance urography (MRU)?
small non-obstructive calculi might be missed at MRU performed for the evaluation of hematuria
in pediatrics, performing a dynamic contrast-enhanced imaging helps in evaluating crossing vessels in the setting of UPJ obstruction
the success of static-fluid MR urography depends on the presence of fluid within the urinary system regardless of renal function
MRU at 3T, carries the risk of nephrogenic systemic fibrosis
What imaging modality is superior in detecting undescended testis in the abdomen?
MRI
CT
ultrasound
all are comparable
Regarding acute renal infections, what is the least diagnostic radionuclide study for detecting an inflammatory focus?
hippuran I-131
technetium-99m
gallium-67
indium-111labelled WBC
Which condition tops the differential diagnoses list of CT picture of Xanthogranulomatous pyelonephritis?
renal tuberculosis
renal abscess
renal cell carcinoma
angiomyolipoma
What should type II diabetic patients on metformin do when going for intravenous contrast urography to avoid biguanide lactic acidosis?
take urine acidifiers
withhold metformin the day before the study and restart 48 hrs. later
get premedicated by steroids and antihistamines
decrease metformin dose and turn to insulin
What is the emergency treatment of intravenous contrast allergy?
epinephrine
atropine
hydrocortisone
antihistamine
On sagittal plane of midline TRUS, which structure might NOT be visible?
peripheral zone of the prostate
ejaculatory duct
tip of the right seminal vesicle
tip of the left lateral lobe of the prostate
What is the poorest method of measuring the amount of urine in the bladder of a 65 yrs. old man?
using bladder scanner
measuring the voided urine
using abdominal ultrasonography
performing urinary catheterization
Which condition does NOT show a false positive result for hydronephrosis on ultrasonic examination?
hydrocalicosis
extrarenal pelvis
parapelvic cyst
class 2 Bosniak renal cyst
Which statement is false concerning plain KUB film?
reliable tool to exclude urinary calculi
calcifications at renal area might lead to the discovery of renal cancers
can detect soft tissues
fecoliths and phleboliths could be mistaken for calculi
What is true concerning Tc-99m DTPA?
Its uptake by glomerular filtration is almost 100%
It helps evaluate cortical structure and morphology
It provides a static picture of kidneys when compared to MAG3
it binds to the sulfhydryl groups in proximal tubules resulting in much higher resolution pinhole SPECT imaging
Which statement is false concerning diuretic nuclear scintigraphy renogram?
an elimination T ½ < 10 minutes indicates obstructed system
the diuretic must be given at the maximum kidney activity
If ureteral stents are in place, the bladder catheter must be unclamped
99mTc-MAG3 is the agent of choice to study differential renal function and obstruction
What is the hallmark finding on plain KUB of bladder exstrophy?
malunion of lumbar and/or sacral vertebral bodies
pelvic bone diastasis
sacral agenesis
fracture of anterior pubic rami
Which condition does NOT show a false negative result for hydronephrosis on ultrasonic examination?
forniceal rupture
drained renal pelvis
high urine output
acute obstruction
What is the optimal time for viewing the renal parenchyma after injecting a contrast material during IVU study?
0 minute
5 minutes
10 minutes
renal parenchyma does not appear on IVU
Using ultrasonography, which testicular lesion is cystic with heterogeneous echoes representing a mixture of mucinous and/or sebaceous material with or without hair follicles, cartilages, and bones?
non-seminomatous germ cell tumors
acute bleed on top of old hematoma
mature teratoma
sex cord stromal tumors
Which structure can NOT be assessed by TRUS of the prostate?
ejaculatory duct
vas deferens
seminal vesicles
rectal wall
By ultrasonography, when kidneys appear darker than the liver, they are:
hypoechoic
hyperechoic
anechoic
isoechoic
Ultrasonic 3.5 MHz curved array probe is suitable to detect:
epididymal cysts
testicular tumors
renal stones
penile vasculature
Which of the following is NOT an indication of retrograde pyelography?
evaluation of probable ureteral obstruction
in conjunction with ureteroscopy
evaluation of hematuria
evaluation of probable ureterovesical reflux