Lesson 4D (Part 1) Flashcards Preview

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Flashcards in Lesson 4D (Part 1) Deck (36)
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1

What are cortical cysts known as?

Simple cysts

2

What are 6 characteristics of simple cysts?

1. Benign
2. Fluid filled
3. Anechoic
4. Sharp defined borders
5. Round or ovoid
6. Posterior enhancement

3

Are simple cysts symptomatic or asymptomatic?

Asymptomatic

4

What can large cysts potentially cause? (2)

1. Flank pain
2. Hematuria

5

What are 4 characteristics of complex cysts?

1. Contain internal echoes
2. Septations
3. Calcifications
4. Mural nodularity

6

What do most complex cysts require? (2)

1. CECT
2. MRI

- for follow up

7

What are internal echoes a result of? (2)

1.Hemorrhage
2. Infection

8

What do thickened cyst walls, debris filled/ gas fluid level infection require? (2)

1. Aspiration
2. Drainage

9

What do septations result from? (3)

1. Hemorrhage
2. Infection
3. Previous percutaneous aspiration

10

What are septations considered as?

Benign
- thin, smooth septa attached to a thin wall

11

What is a thick septa considered as?

> 1 cm

12

What is an ominous sign?

Complex cysts with thick septa > 1cm and thick wall attachment

13

What is the best modality for characterizing cysts?

US

14

What is not indicated in multiseptated cysts?

Aspiration

15

What do thin walls or septal calcification suggest?

A complicated cyst
- rather than malignancy

16

What type of calcification is more worrisome?

Thick irregular amorphous calcification

17

If solid enhancing components are seen on CT what is a recommended?

A prompt reaction

18

What does surgical removal only exclude?

Malignancy

19

What kind of cyst is a milk of calcium cysts?

Benign

20

What does a milk of calcium cyst mimic?

Cyst wall calcification

21

What does milk of calcium cysts look like on US? (2)

1. Bright echogenic foci
2. Ring down artifact

22

What does CT not pick up with milk of calcium cysts?

Calcification

23

What does parapelvic cysts not communicate with?

The collecting system

24

What does parapelvic cysts mimic?

Hydronephrosis
- so take care to show noncontinuity with collecting system

25

What do parapelvic cysts look like on US? (3)

1. Well defined
2. Anechoic
3. Renal sinus masses

26

What can help differentiate parapelvic cysts?

CECT

27

What are examples of renal cystic diseases? (8)

1. ADPKD
2. ARPKD
2. Tuberous sclerosis
4. Medullary spong kidney
5. Von-Hoppel lindau disease
6. Medullary cystic diseases
7. Acquired cystic kidney disease
8. Multicystic renal dysplasia

28

ADPKD

Autosomal dominant polycystic kidney disease

29

What is the most common hereditary renal disorder?

Autosomal dominant polycystic kidney disease

30

What does ADPKD result in?

A large number of bilateral cortical and medullary renal cysts