Which condition does NOT show a false positive result for hydronephrosis on ultrasonic examination?
hydrocalicosis
extrarenal pelvis
parapelvic cyst
class 2 Bosniak renal cyst
Correct Answer :
D. class 2 Bosniak renal cyst
Bosniak cysts are cortical cysts and are usually not mistaken for hydronephrosis
Related Questions
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
Which structure can NOT be assessed by TRUS of the prostate?
ejaculatory duct
vas deferens
seminal vesicles
rectal wall
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
Which condition tops the differential diagnoses list of CT picture of Xanthogranulomatous pyelonephritis?
renal tuberculosis
renal abscess
renal cell carcinoma
angiomyolipoma
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
On staging left kidney RCC using enhanced CT, the radiologist must look for:
extension of the tumor to the diaphragm
extension of the tumor to the right atrium
the density of calcifications
the amount and bilaterality of cysts formation
How does fluid appear on T2-weighted MR images?
dark
intermediate
bright
none of the above
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
How does a full bladder appear on ultrasonography?
hyperechoic
hypoechoic
isoechoic
anechoic
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
Using CT scanning, which solid kidney mass is sharply demarcated with uniform enhancement and often has a central scar?
RCC
metastases
angiomyolipoma
oncocytoma
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
What is the emergency treatment of intravenous contrast allergy?
epinephrine
atropine
hydrocortisone
antihistamine
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 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 is the improper usage of TRUS?
to evaluate ejaculatory duct obstruction in infertility case
to screen for prostate cancers
to take prostate biopsies
to place interstitial radiotherapy seeds
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 of the following is NOT an indication of static cystography?
evaluating a probable bladder rupture
evaluating a probable colovesical or vesicovaginal fistulae
evaluating a probable intravesical pathology
evaluating a probable bladder diverticula
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
Which radiological modality carries the highest radiation hazard?
nuclear medicine
ultrasonography
X-ray fluoroscopy
intravenous urography
What imaging modality is superior in detecting undescended testis in the abdomen?
MRI
CT
ultrasound
all are comparable
What is the minimum estimate of GFR to take gadolinium-based contrast agents?
more than 30 mL/min/1.73 m2
more than 60 mL/min/1.73 m2
more than 90 mL/min/1.73 m2
none of the above
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
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
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 (are) the indication(s) of renal artery embolization?
bleeding angiomyolipomas
an alternative to nephrectomy in severe uncontrolled hypertension among patients with end-stage renal disease
renal artery aneurysms or symptomatic AV malformations
all of the above
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
Using CT, which solid kidney mass is like a bulge of the renal contour characterized by normal corticomedullary patterns?
prominent columns of Bertin
xanthogranulomatous pyelonephritis
lymphoma
renal infarction
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
What is the signal characteristic of renal stones on MRU?
high signal on T1-weighted images
high signal on T2-weighted images
low signal on T1-weighted images
none of the above