Imaging in Renal and Urology Flashcards

1
Q

What is the first line test for renal colic

A

KUB x ray

with or without IV contrast

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2
Q

Where do ureteric calculi usually get stuck

A

the pelviureteric junction
pelvic brim
vesicoureteric junction

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3
Q

What other pathologies may stimulate calculi

A

pheboliths, lymph nodes, uterine fibroids and arterial calcification

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4
Q

What is the definitive test to confirm a symptomatic ureteric calculus

A

non contrast CT

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5
Q

What is the negative aspect of CT

A

very high dose radiation

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6
Q

What is the prefered test of pyelonephritis

A

US

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7
Q

What is the preferred test of gynaelogical diseases

A

US

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8
Q

What is the preferred test of gynaelogical diseases

A

US

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9
Q

How do you investigate macroscopic haematurea

A
CT urography (kindeys, collecting systems and ureters)
cystoscopy ( bladder and urethra)
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10
Q

When would you use a ureteroscopy

A

to confirm tumour if not sure after CTU

to ablate tumours if patient cannot have nephrourectomy

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11
Q

Describe the technique of CT urography

A

First scan before contrast - detects renal or ureteric coliv

Then do a second CT with contrast for tumours

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12
Q

How do you investigate macroscopic haematurea in over 50s

A
CT urography (kindeys, collecting systems and ureters)
cystoscopy ( bladder and urethra)
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13
Q

Describe the technique of CT urography

A

First scan before contrast - detects renal or ureteric colic

Then do a second CT with contrast for tumours

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14
Q

How would you investigate a case of macroscopic haematuria in a person under 50

A

US - renal calculi and paranchymal tumours
Cystoscopy - tumours
CTU only when all other investigations normal and MA persists

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15
Q

How would you investigate a case of macroscopic haematuria in a person under 50

A

US - renal calculi and paranchymal tumours
Cystoscopy - tumours
CTU only when all other investigations normal and MA persists

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16
Q

When is MR urography useful

A

it doesnt require contrast or radiation so is useful in patients who have a contrast allergy and renal impairement and pregnancy

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17
Q

What are the disadvantages of MR urography

A

less sensitive than CTU for small calculi or upper TCC so only use when CTU contraindicated

18
Q

What are the disadvantages of MR urography

A

less sensitive than CTU for small calculi or upper TCC so only use when CTU contraindicated

19
Q

What size of renal tumours rarely metastasize

A

those less than 3cm

follow up rather than operate

20
Q

What are renal masses containing fat usually

A

angiomyolipomas

21
Q

What are fluid dense masses usually

A

cysts

22
Q

What are fluid dense masses usually

A

cysts

23
Q

What are signs of malignancy

A

complex cysts, solid areas, thick septa

solid non cyctic masses more than 3cm

24
Q

What are signs of malignancy

A

complex cysts, solid areas, thick septa

solid non cyctic masses more than 3cm

25
Q

What investigation is used to stage tumours

A

CT

26
Q

What is the role of imaging in renal impairement

A

Pre renal - MR angiography to detect RAS
Renal - biopsy US guided
Post- US (hydronephrosis) CT

27
Q

What investigation can be used to distinguish between acute and chronic renal impairement

A

US - asseses renal size

28
Q

What investigation can be used to distinguish between acute and chronic renal impairement

A

US - asseses renal size

29
Q

What is usually used to image the scrotum and testes

A

US

30
Q

What is the appearance of testis and or epididymitis on US

A

hypervascular

31
Q

What is the appearance of testicular torsion on US

A

avascualar

32
Q

What does a varicocoele usually look like on US

A

dilater scrotal venous plexus
typically in left side
tortuous veins

33
Q

What does a hydrocoele look like on US

A

black anechoic fluid surroudnign testicle

34
Q

What does a hydrocoele look like on US

A

black anechoic fluid surroudnign testicle

35
Q

Where do epidymal cysts usually arise

A

the head

36
Q

Where do epidymal cysts usually arise

A

the head

37
Q

How is renal trauma best assessed

A

CT

38
Q

How is bladder injury best imaged

A

contrast cystography

39
Q

How is bladder injury best imaged

A

contrast cystography

40
Q

What should you always refer to urologist

A

suspected urethral injury

41
Q

how is a urethral sticture imaged

A

urethropgraphy

42
Q

What procedure can relieve ureteric obstruction

A

nephrostomy