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pediatric urology > renal cysts > Flashcards

renal cysts Flashcards

1
Q

renal cyst is most common lesion of kidney

true or false

A

true

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2
Q

What classification is used to categorize renal cysts?

A

Bosniak classification

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3
Q

MCDK non-inherited kidney disease

true or false

A

true

usually unilateral and left sided

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4
Q

ADPKD adult polycystic kidney disease is autosomal

develops at what ages

A

20 to 30’s

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5
Q

It is the most common inherited cause of end stage renal failure
true or false

A

true

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6
Q

more than 50% develop end stage renal disease by what age

A

60 yrs

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7
Q

What is the Potter classification

A

type 1 infantile polycystic kidney disease
type 2 MCDK
type 3 adult polycystic kidney disease (APCKD)
type 4 obstructive renal dysplasia

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8
Q

obstructive cystic renal dysplasia occurs from?

A

obstruction of bladder, urether, or urethra

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9
Q

acquired renal cysts are most commonly

A

idiopathic

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10
Q

renal cysts can be seen from or associated with what diseases

A

infection
Von-Hippel-Lindau
tuberous sclerosis

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11
Q

common presentation of ADPKD

A

flank pain, renal failure, HTN, or palpable mass

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12
Q

infantile polycystic kidney disease due to poor renal disease causes what prenatally

A

oligohydramnios

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13
Q

how many cysts classify APCKD

A

2 cysts bilaterally by age 30

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14
Q

what characterizes a simple renal cyst on u/s

A

well-marginated anechoic lesion wiht possible posterior acoustic enhancement

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15
Q

what characterizes a complex cyst on u/s

A

thick septations hypoechoic appearance or signs of internal debris

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16
Q

Bosniak I

A

simple cyst round with imperceptible walls–no f/u is needed-zero chance of malignancy

17
Q

Bosniak II

A

minimal complexity with few thin septation less than 1mm in diameter, thin calcification or high attenuated lesion less than 3cm without enhancement
require no f/u zero chance of malignancy

18
Q

Bosniak II F

A

minimal complexity, increased number of thin septations, or high attenuated lesion larger than 3cm–require f/u with CT scan or RUS in 6months
5% chance of malignancy

19
Q

Bosniak III

A

inderterminant in appearance with thick sepation possible nodular–recommend biopsy—55% chance of malignancy

20
Q

Bosniak IV

A

solid mass with cystic vs necrotic components

100% malignant

21
Q

What is most common associated disease with infantile polycystic kidney disease

A

Caroli disease of liver and hepatic fibrosis

22
Q

Associated findings with APCKD

A

berry aneurysm, HTN, liver cysts and cysts in other organs

23
Q

what diseases are associated with obstructive cystic renal dysplasia

A

VACTERAL and CHD

pediatric urology (3 decks)

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