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Foundations II Exam 5 (Jess) > Renal cysts > Flashcards

Flashcards in Renal cysts Deck (16):
1

How are cysts categorized?

size
location
septations
calcifications
contents
enhancement

2

What is the most common type of renal mass?

Simple renal cyst

3

What is the most common age group for simple renal cysts and how are they most commonly found?

>70 yo

MC incidental finding

4

Are patients with simple renal cysts more at risk for HTN, CA, CKD, or ESRD?

NAHHHH

5

Where do simple renal cysts develop? Characteristics

in the cortex and medulla

solitary or multiple
< 1 cm to > 10 cm
round or oval
lining is simple epithelial layer
fluid filled
Clear to straw-color fluid

6

What is the most common clinical manifestation of simple renal cysts?

Trick question...
they typically produce no clinical manifestations

7

If a pt w/ simple renal cyst were to have rupture, what would the symptoms be?

flank pain and hematuria

8

If a pt w/ simple renal cyst were to have infection leading to renal abscess, what would the symptoms be?

insidious fever
vague limbo-abdominal pain
+/- hematuria or pyuria

9

You need to distinguish simple cysts from what?

complex cysts

10

What are the US criteria for simple cysts

-sharply demarcated w/ smooth thin walls
-no echoes (anechoic) within the mass
-enhanced back wall indicating good transmission through the cyst

11

What are the US criteria for complex cysts

-thick walls &/or separations
-calcifications
-solid components
-mixed echogenicity
-vascularity

12

If US is c/w complex cyst, what needs to be done?

CT w/ and w/o contrast

13

On Bosniak Classifaction, what is category I features and what does it indicate?

features of simple cyst:
-sharply demarcated w/ smooth thin wall
-homogenous fluid
-no contrast enhancement

Means simple cyst!

14

On Bosniak Classifaction, what is category II features and what does it indicate?

-closely resemble simple cyst
-may be few thin septa
-may contain few calcifications
-< 3cm and well demarcated
-no contrast enhancement

complex cyst
bengin

15

If you find a renal cyst that is Bosniak classification of I or II, what needs to be done?

Repeat CT w/ and w/o contrast in 6-12 months

16

-Indeterminate cystic masses
-thickened irregular walls or septa
-measurable enhancement

These are all features of which Bosniak Category? What do they indicate? what needs to be done?

Category III

complex cyst
features are c/w malignancy
monitor or excise