GU Flashcards
Causes Dromedary hump
Spleen
Man with renal agenesis:
Ipsi absent epididymis, Vas,
Or
Ipsi seminal vesicle cyst
Horsehoe kidney gets hung up on:
IMA
AML vs Clear cell RCC?
Calcification
Clear cell looks like?
A/W
Enhancement equal to cortex, calcifications
VHL
Papillary RCC
MRI look
T2 Dark
Enhance less than clear cell (less than cortex)
Medullary RCC
A/W?
Presentation
Sickle cell
Large, metastasized, aggressive
Chromophobe RCC
Burt Hogge Dubbe
RCC Stage 1
<7cm
RCC stage 2
>7cm
RCC stage 3A
Renal Vein
RCC 3B
IVC below phragm
RCC 3C
above phragm
RCC stage 4
Beyond Gerota’s fascia
Nephrogenic phase =
80 seconds
Renal lymphoma MC appearance
BILATERAL enlarged kidneys with small low attenuation cortically based solid nodules
MC visceral organ involved in leukemia
Kidney
AML A/W
TS
AML with calcs =
a clear cell RCC (not an AML)
Lipid poor AML=
T2 dark
Oncocytoma vs. RCC?
Central scar
Spoke wheel vascular pattern US
Oncocytoma vs RCC PET
Onco HOT
RCC cold
-er than surrounding parenchyma
Bilateral Oncocytomas
Burt Hogge Dube
(DONT FORGET CHROMOPHOBE RCC TOO)
Multilocular cystic nephroma
Non-communicating fluid filled nodules with thick capsule
PROTRUDES INTO RENAL PELVIS
BIMODAL
4 year old boys and middle aged women
Boz 2f
Hyperdense >3cm
THIN calcs
<5% chance of cancer
Boz 3
Thick calcs
mural nodule
50% cancer
Boz 4
ANY enhancement
Cancer
ADPKD cysts where?
LIVER and SEMINAL VESICLES
HD kidney (Uremic cystic kidney disease)
3-6x risk of cancer
cysts regress after transplant
SMALL KIDNEYS
VHL Pancreas?
cysts
serous microcystic adenomas
islet cell tumors
VHL adrenal
PheoS
TS
kidney?
lung?
Cardiac?
AML (RCC at young age)
LAM
Rhabdomyosarcoma (septum)
Lithium kidney
Diabetes insipidus
innumeralble tiny cysts
Multicystic Dysplastic ?
PEDS
No functioning renal tissue
a/w contralateral tract abnormalities
T2 dark renal cyst
Lipid poor AML
Hemorrhagic cyst (T1 bright)
Papillary RCC (less enhancement than clear cell)
emphysematous pyelo
diabetics
emphysematous pyelitis
Gas localized to collecting system
diabetics, women, h/o obstruction
papillary necrosis causes
DM!
pyelo
sickle cell
TB
analgesics
cirrhosis
TB kidney
shrunken and calcified
HIV nephropathy
PCP kidney?
Big, echogenic
loss of renal sinus fat
PCP= punctate cortical calcs
CIN risk factors
DM
RF
CHF
Myeloma!
MC stones
Ca oxalate
Women and UTI stones
Struvite
Unseen on Xray
Uric acid
Also fat, diabetics
MAIN stones that can be treated MEDICALLY
Futz with pH
Only stones not seen on CT?
Indinavir
HIV patients!
Identifying Uric acid stones?
Lower attenuation <500
Little change between high and low energy on dual energy CT…
Cortical nephrocalcinosis
Usually sequela of hypoperfusion injury,
hypodense rim –> thin calcifications
medullary nephrocalcinosis
4 causes
hyperechoic papilla
hyperPTH or medullary sponge (usually asymmetric)
lasix in a kid
RTA type 1
Medullary sponge associations?
Ehlers Danlos
Carolis
Beckwith Wideman
Review, hyperechoic shadowing pyramids
Persistent nephrogram
Shock/ATN
Bilateral
enhancement at 2-3 hours
Renal vein thrombosis US
Reversed arterial diastolic flow
absent venous flow
big kid with delayed nephrogram
Post transplant complication
First two weeks
Urinoma
Renal transplant immediate collection
hematoma
1-2 months after transplant
lymphocele
MC fluid collection to cause hydro
compress ipsi femoral vein –> leg swelling