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Radiology Review > GU Trivia > Flashcards

GU Trivia Flashcards

1
Q

Bosniak I

A

Simple cyst, no septations

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2
Q

Bosniak II

A

Few hairline septations
fine calcs or minimal thicker calcs
hyperdense cyst < 3cm

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3
Q

Bosniak IIF

A

Multiple thin septations
thin wall
thick or nodular calcs
Endophytic hyperdense cysts > 3 cm

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4
Q

Bosniak III

A

Thick septations or thick wall

No enhancing nodules

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5
Q

Bosniak IV

A

Enhancing nodules

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6
Q

Bear Paw Sign Kidney

A 
Xanthogranulomatous pyelonephritis
(central obstructing urolithiasis, nephromegaly)
MCC = Proteus mirabilis or E coli
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7
Q

Putty Kidney

A

atrophic calcified kidney (TB)

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8
Q

Page Kidney

A

compression of the kidney from extrensic source that causes HTN (eg. subcapsular bleeding)

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9
Q

Absolute adrenal washout

A

(Post HU - Delayed HU)/(Post HU - Pre HU)

Anything >60% = adenoma

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10
Q

Relative washout

A

(Post HU - Delayed HU)/Post HU

Anything >40% in a homogeneous adrenal mass <4 cm = adenoma

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11
Q

> /= 16.5% signal loss of adrenal mass on In and Out of phase

A

likely lipid rich adenoma (microscopic fat)

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12
Q

Chemical shift artifact surrounding an internal adrenal nodule

A

likely Myelolipoma (macroscopic fat)

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13
Q

Left adrenal vein

A

drains into left renal vein

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14
Q

Right adrenal vein

A

direct into IVC

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15
Q

PET SUV for adrenal mets

A

less than liver = higher PPV for mets

average max SUV of adrenal glands is 0.9-1.1

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16
Q

NF-1 assoc with what adrenal pathology

A

Pheochromocytoma

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17
Q

Papillary necrosis

A

elongated fornix
lobster claw
clubbed calyx
golf-ball-on-tee deformity

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18
Q

Papillary necrosis DDX

A 
Nonsteroidal anti inflammatory drugs
Sickle cell
Analgesic abuse
Infection
Diabetes mellitus
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19
Q

Bladder cancer staging

A 
Can't be done on CT
T1 - invades bladder wall (nonmuscular)
T2 - invades muscular wall
T3 - extends outside the bladder wall
T4 - Tumor invades abdominal wall or adjacent organ
20
Q

MC scrotal tumors in VHL

A

epididymal cystadenoma

VHL - epididymal cystadenoma, CNS and retinal hemangioblastomas, pancreatic neuroendocrine tumors, pancreatic cysts, RCCs, pheochromocytoma

21
Q

PSA level < 10 ng/mL = what bone met risk

A

< 1%

PSA >/= 20 ng/ml = higher risk

22
Q

Testicular Adrenal Rests

A

hypoechoic
eccentric
assoc. w/ congenital adrenal hyperplasia

23
Q

Peyronie disease

A

calcs in the tunica albuginea

24
Q

Adenomyosis diagnosis

A

junctional zone thickness > 12 mm

< 8 mm = normal
9-12 mm = equivocal

25
Q

Intrauterine septum

A

look at the fundus (moves from fundus to cervix)

26
Q

T shaped uterus

A

DES exposure

27
Q

Posterior acoustic enhancement on US

A

lack of amplitude attenuation of the US beam as it passes through a cyst

Attenuation correction artifact

28
Q

Rudimentary horns of unicornuate uteri

A

Surgery

29
Q

1.5 T Larmor fq; 3 T

A

1.5 = 220 Hz

3 = 440 Hz

pixel shift = 220 Hz (for 1.5)/receiver bandwidth/Matrix

30
Q

PCOS

A

12 or more follices 2 to 9 mm in diameter and/or ovarian volume > 10 mL

31
Q

Meigs syndrome

A

ovarian fibroma = circumscribed T2 hypo, hypovascular solid ovarian mass

CA-125 elevated

Meigs syndrome = ascites and pleural effusion

32
Q

Bartholin cysts

A

posterolateral inferior vagina

33
Q

Gartner cysts

A

anterolateral vagina

34
Q

Skene cyst

A

lateral periurethral

35
Q

salpingitis isthmica nodosa

A

multiple saclike contrast filled collections in the isthmic segment of fallopian tubes = prior infection

36
Q

parts of the fallopian tube from proximal to distal

A

interstitial - isthmic - ampullary - infundibular

37
Q

AAA repair

A

> /= 5.5 cm

38
Q

Retroperitoneal Erdheim-Chester disease

A 
perinephric soft tissue thickening, retroperitoneal ST mass
Ureteric obstruction
histologic non-langerhans histiocytosis
retro-orbital ST mass
DI
metaphyseal osteosclerosis
39
Q

HU for fluid in abdomen

A 
0-20 = fluid
20-40 = free flowing blood
40-70 = clotted blood
40
Q

Solid primary retroperitoneal mass centered around the IVC

A

leiomyosarcoma

41
Q

Striated nephrogram

A 
infarcts
renal vein thrombosis
pyelonephritis
glomerulonephritis
urinary tract obstruction
42
Q

length bias

A

screening study that picks up slowly progressive disease at a disproportionate rate

43
Q

lead time bias

A

identify disease earlier but does not change outcome

44
Q

Voxel size for 2D MR images

A

(FOV/phase encoding steps) * (FOV/frequency encoding steps) * slice thickness

45
Q

epitheloid angiomyolipoma

A

aggressive variant AML that can locally recur and mets

46
Q

Decreasing radiation dose exponential vs linear

A

reducing kVp = exponential

mA, pitch, and z-axis coverage = linear

47
Q

Seminal vesicle cyst (look for claw sign)

A

Assoc with ipsilateral renal agenesis or dysgenesis
ADPCKD
vas deferens agenesis
ectopic ureteral insertion

Radiology Review (9 decks)

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