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
Correct Answer :
B. extension of the tumor to the right atrium
RCC can invade the perinephric fat beyond the renal fascia and can extend into the renal vein, inferior vena cava and right atrium; and/or the adjacent adrenal gland.
Related Questions
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
Which of the following is false concerning retrograde urethrogram?
coning at the bulbar urethra is normal
segmental narrowing at bulbar urethra is normal
multiple round filling defects could be air bubbles
indicated in urethral trauma cases
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
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
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 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
On clinical examination, what accidental finding has NO connection to renal cancer?
unilateral hydrocele
bilateral varicocele
calcifications at the renal area on plain KUB film
painless hematuria
Using ultrasonography, which testicular lesion is described as a solid, round, homogeneous, low-reflectivity tumor mass, with no calcification?
seminoma
embryonal cell tumor
mixed germ cell tumor
epidermoid cyst
What imaging modality is superior in detecting undescended testis in the abdomen?
MRI
CT
ultrasound
all are comparable
How does a full bladder appear on ultrasonography?
hyperechoic
hypoechoic
isoechoic
anechoic
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
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 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
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 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
In routine practice, when do urologists request plain skull X-ray?
advanced prostatic cancer
central diabetes insipidus
pituitary adenoma
a & c
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 renal arteriography?
preparation for donor nephrectomy
advanced RCC in the right kidney
renal artery stenosis
oncocytoma in the left kidney
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 false concerning complications of left renal artery embolization?
embolizing the non-target artery might occur
severe pain at the renal area could occur
complications depend on the embolic agent
reactive left pulmonary edema
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 of low reflectivity with irregular borders, hypervascular rims but no internal vascularity to mention?
intratesticular hematoma
testicular abscess
orchitis
sex cord stromal tumors
What is false on comparing Tc-99m DTPA to Tc-99m MAG3?
DTPA provides better quality images with renal insufficiency
by giving captopril, MAG3 plasma clearance declines in hypertensive patients with renal artery stenosis but rises in those who do not have the disease
DTPA provides an excellent measurement of GFR
in pediatrics, MAG3 provides better quality images than DTPA
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
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 (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
Which structure can NOT be assessed by TRUS of the prostate?
ejaculatory duct
vas deferens
seminal vesicles
rectal wall
Using CT scanning, which solid kidney mass is sharply demarcated with uniform enhancement and often has a central scar?
RCC
metastases
angiomyolipoma
oncocytoma
What matter does correspond to zero Hounsfield units?
air
water
fat
bone
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