Urinary Bladder Flashcards

1
Q

What are the three different parts of the urinary bladder?

A

Apex - cranially
Body
Neck - caudally

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2
Q

How many ligaments does the urinary bladder have?

What are they?

A

Two lateral
One ventral
Peritoneal reflections they are

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3
Q

The uterus lays between what structures?

A

Urinary bladder - ventrally

Colon - dorsally

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4
Q

Pelvic urinary bladder may indicate what?

A

Normal variation
Congenital urinary tract anomalies
Correlate with clinical signs

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5
Q

Point apex may indicate?

A

Persistent urachal ligament

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6
Q

Emphysematous cystitis can place gas where?

A

Luminal
Wall
Ligaments

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7
Q

Emphysematous cystitis is associated with what other disease?

A

Diabetes mellitus

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8
Q

What are compression views used for?

A

To push summated tissues out of the way to confirm abnormalities like calculi.

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9
Q

Other differentials for mineralization in bladder?

A

Neoplasia
Chronic cystits
Calculi - MAIN ONE

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10
Q

Indications for retrograde csytogram?

A

1) Clinical signs
Dysuria
Pollakiuria
Chronic hematuria

2) Radiographic signs
Changes in opacity of urinary bladder
Caudal abdominal mass
Non visualization of the bladder after trauma
Abnormal shape or location
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11
Q

Retrograde Cystography prep

A

1) Fast for 24 hours

2) Enema

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12
Q

What type of contrast is used in positive contrast?

Negative contrast?

A

PC = Iodides
NC = Air, carbon oxide, nitrogen oxide
*** Air can cause emboli

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13
Q

Complication of pushing contrast on a maximal distended bladder?

A

Contrast intramural and subserosal which can cause ulcer or granuloma

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14
Q

Amount of positive contrast for pos contrast study?

A

3.5ml - 10ml per kg should be used at 20%

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15
Q

Views after contrast?

A

Lateral, DV and two obliques

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16
Q

What cystic calculi cannot be see radiographically?

A

Urate

Cystine

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17
Q

Positive contrast and double contrast studies are used more than negative contrast study T/F

A

True - neg contrast not used much

18
Q

Positive contrast is good for?

A

Tears
Location of bladder
Abnormal communications
Hernias

19
Q

Double contrast is performed by…

A

0.5-1ml undiluted for cats
1-6 ml undiluted for dogs
THEN
Distend bladder with neg contrast

20
Q

Double contrast study used for…

A

Filling defects - mass vs calculi

Wall lesions

21
Q

Irregular mucosa DDx

A

Ulcer
Neoplasia
Hyperplasia
Inadequate bladder distention

22
Q

Bladder wall thickeness is normally ~?

A

~1mm

23
Q

Bladder wall thickening DDX

A

Inadequate bladder distention
Inflammation
Hemorrhage
Neoplasia

24
Q

Where does cystitis like to show thickening?

A

FOCAL thickening of cranioventral… inflammation.. almost always

25
Q

Chronic cystitis can cause what to the distention properties of the bladder?

A

Fibrosis and restrictive

26
Q

Causes for non-sessile filling defects?

A

Calculi
Air bubbles
Blood clots

27
Q

Causes for sessile filling defects?

A
Neoplasia
Polyps
Blood clots
Adherent calculi
Ureteroceles
28
Q

Cobra-head sign associated with?

A

Ureteroceles

29
Q

Artifacts of cystogram

A

Pseudofilling defects
Large air bubble
Honeycombing
Pseduothick wall

30
Q

Sonographic evaluation of UB is best done when…

A

The UB is moderatley full.

31
Q

Sonographic normal UB wall thickness

A

Dogs - 1.4-2.3mm

Cat - 1.7 +/- 0.6mm

32
Q

Artifact that makes pseudosludge in UB

A

Side lobe artifact

33
Q

Poster child for TCC?

A

Scottish terrier

34
Q

Layers of the Urinary bladder?

A

3 layers
Muscosa - hyperechoic
Submucosa - hypoechoic
Serosa - hyperechoic

35
Q

Blood clots look like what on US?

A

Hyperechoic, nonshadowing, mobile

36
Q

Polypoid cystitis is usually located where?

A

Cranioventral… associated with cystitis

DDX - neoplasia - so follow up US needed or biopsy

37
Q

US characteristics of TCC?

A

Hypoechoic, sessile, board based, irregular

38
Q

Prognostic indicators of TCC?

A

Wall involvement
Trigone location
Heterogeneous echotexture

39
Q

Other neoplastic disease?

A

Leiomyoma - Single, round, well-defined intramural
Leiomyosarcoma - Single, round, well-defined intramural
Fibrosarcoma - Neck of UB of young dogs
Rhadomyosarcomas - Neck of UB of young dogs
Lymphoma

40
Q

Other observations that support neoplasia?

A

Ureter dilation

Lymphadenopathy

41
Q

US description of Ureteroceles

A

Cyst within a cyst… “cystception”

42
Q

What dog breed is most prone to polypoid cystic changes?

A

Springer spaniel