B5-082 CBCL Hematuria Flashcards
cubiform clot is likely from the
bladder
vermiform clot is likely from the
upper urinary tract
hematuria at the start of urination may indicate
urethral/prostate issue
hematuria at termination of urination may indicate
bladder neck issue
oxidation of the indicator strip can be caused by
3
hematuria
myoglobin
providone-iodine antiseptics
confirm on centrifuged mid stream urine
definition of microscopic hematuria
greater than 3 RBC/hpf
standard work up of gross hematuria
- cystoscopy
- CT urogram or MR urography
- cytology
standard workup of microscopic hematuria depends heavily on
2
H&P
risk stratification
if a patient with microscopic hematuria is determined to be low risk
repeat urinalysis in 6 months
or cystography/US
if a patient with microscopic hematuria is determined to be intermediate risk
cystoscopy and renal US
if a patient with microscopic hematuria is determined to be high risk
cystoscopy and CT urogram
factors that differentiate low risk vs high risk microscopic hematuria
4
- age
- smoking status
- number of RBC/hpf
- relevant history
abnormal urinalysis after strenous exercise
exercise induced hematuria
non glomerular medical
- gross hematuria, CT shows filling defect
- flank pain, AA, analgesic abuse, diabetes
papillary necrosis
non glomerular medical
- renal stones on CT, IVP showing pathopneumonic brush stroke papilla
- flank pain, recurrent UTIs, urolithiasis
medullary sponge kidney
non glomerular medical
family history of renal cystic disease
PKD
non glomerular medical
- renal artery embolus, vein thrombus, AV fistula
- a fib, dehydration, bruit
renovascular disease
non glomerular medical
- urine dipstick + for nitrates, positive urine culture, leukocytosis
- dysuria, fever
UTI
non glomerular surgical
- CT scan demonstrating stone, hydronephrosis
- flank/groin pain, nausea/vomiting, fever
urolithiasis
non glomerular surgical
- demonstrated on CT, cystoscopy, ureteroscopy
- constitutional symptoms, blood clots, pain
urologic malignancy
non glomerular surgical
- enlarged prostate on DRE
- obstructive urinary symptoms
BPH
non glomerular surgical
- friable tissue on cystoscopy
- history of pelvic radiation
radiation cystitis
non glomerular surgical
- demonstrated on retrograde urethrogram
- obsructive urinary
urethal stricture
non glomerular surgical
does anticoagulation therapy cause denovo hematuria?
no
however, can worsen it
if a dipstick is positive, must be confirmed with
microscopic analyisis of urine
chemotherapy that can cause hematuria
2
- mitotane
- cyclophosphamide
common risk factors for urinary tract malignancy in patients with microscopic hematuria
- over 35 years old
- analgesic abuse
- exposure to benzenes or aromatic amines
- male
- smoking
- history of irritation to GU tract
upper tract imaging of choice
CT urogram
lower urinary tract test of choice
cystoscopy
patients that catheterize themselves or elderly women may have
asymptomatic bacteriuria
colonization
infection associated with anatomical/functional abnormality of the urinary tract, immunocompromised host, or MDR bacteria
complicated UTI
type P fimbriae is most commonly associated with
pyelonephritis
pathogen commonly causing UTIs in women of childbearing age
staph. sapro
best way to assure your getting urine from the bladder for urinalysis
catheterization
greater than 10 WBC/hpf is most sensitive for
pyuria
UTI
management of uncomplicated UTI
nitrofurantoin x 5 days OR
TMP/SMX x 3 days
nitrofurantoin should not be used to treat
complicated UTI
how long should complicated UTI be treated for?
2 weeks
most common type of stone
calcium oxalate
precipitates with hypocitraturia
calcium oxalate
stone shaped like envelope or dumbbell
calcium oxalate
what stones can results from ethylene glycol, vitamin C over use, hypocitriuria, or malabsoprtion
calcium oxalate
treatment for calcium oxalate stones
- increase fluids
- decrease urinary calcium
- increase citrate
what stones form in acidic urine at a pH less than 6?
uric acid
rhomoid or rosette stones
uric acid
what stones are associated with a high protein diet, hyperuricemia (gout) hyperuricosuria, insulin resistance, leukemia
uric acid
treatment for uric acid stones
alkalization of urine
what type of stones are caused by urease-producing organisms
struvite
proteus causes
struvite stones
staghorn calculi
struvite stones
treatment of struvite stones
surgical removal and agressive treatment of infection
does E. coli produce urease?
no
- form in alkaline urine
- usually associated with metabolic disorders
calcium phosphate
treatment of calcium phosphate stones
manage underlying disorder
caused by AR disease cystinuria
cystine stones
in cystinuria, what 4 amino acids are unable to be transported normally?
- Cystine
- Ornithine
- Lysine
- Arginine
COLA (all dibasic)
cystine stones appear in patients that are […] for the recessive gene
homozygous
hexagonal cystals
cystine
wedge-shaped prism stone
calcium phosphate
treatment for cystine stones
- alkalization of urine
- Thiola (breaks disulfide bonds)
symptoms of urolithiasis
- colicky flank pain
- nausea, vomiting
- CVA tenderness
- hematuria
gold standard imaging for urolithiasis
non contrast CT scan
expectant management of urolithiasis
- pain control with NSAIDs
- tamsulosin (alpha blocker)
- observe for 2-4 weeks
2 options for urgent surgical intervention of urolithiasis
- stent
- percutaneous nephrostomy tube
why is treatment of the stone contraindicated in infection?
breaking the stone can release bacterial endotoxins
oral dissolution therapy works for which type of stones?
uric acid
any patients with recurrent stones warrants
metabolic workup
high serum calcium in a patient with recurrent stone can indicate
hyper PTH
increase in number of prostatic stromal and epithelial cells in the transition zone
BPH
what zone of the prostate surrounds the urethra?
transition zone
storage symptoms of BPH
- Frequency
- Urgency
- Nocturia
FUN
empyting symptoms of BPH
- Weak stream
- Intermittent flow
- Straining to urinate
- incomplete Emptying
WISE
mainstain drug therapy for BPH
alpha blocker
-osins
gold standard for surgical treatment of BPH
TURP
cancers arising from parenchymal cells of urinary tract
RCC
risk factors for RCC
smoking
obesity
HTN
“enhancing renal mass” on CT
RCC
VHL gene
von-Hippel Lindau disease
familial RCC
c-MET protooncogene
hereditary papillary RCC
familial RCC
most common type of RCC
clear cell
cell of origin- PCT
2
- clear cell RCC
- papillary RCC
clear cell RCC is associated with […] syndrome
von Hippel Lindau
most likely RCC to be multifocal
papillary
syndromes associated with papillary RCC
2
hereditary papillary RCC
familial leiomyomatosis
cell of origin- distal tubule/collecting duct
chromophobe RCC
less aggressive
associated syndrome with chromophobe RCC
Birt-Hogg Dube
folliculin
chromophobe RCC
- oncocytomas
- fibrofolliculomas
- pulmonary cysts
- spontaneous pneumothoraces
chromophobe RCC
- retinal angiomas
- hemangioblastomas
- pheochromocytoma
- renal cysts
clear cell RCC
fumerate hydratase
familial leiomyomatosis
- Type II RCC
- cutaneous leiomyomas
- uterine fibroids
familial leiomyomatosis
what stage of RCC
tumor within capsule
stage 1
what stage of RCC
tumor invasion of perinephric fat
stage 2
what stage of RCC
tumor involvement of regional lymph nodes and/or renal vena cava
stage III
what stage of RCC
tumor involvement of adjacent organs or distant metastases
stage IV
what treatment is indicated for this stage RCC
T1: small and localized
surveillance vs ablation vs partial nephrectomy
what treatment is indicated for this stage RCC
T1a/T2: larger and localized
partial vs radial nephrectomy
what treatment is indicated for this stage RCC
T3: locally advanced
radical nephrectomy
what treatment is indicated for this stage RCC
T4M1
systemic therapy
cell of origin- renal papillae
renal medullary carcinoma
associated syndrome with renal medullary carcinoma
sickle trait
major risk factor for urothelial carcinoma
smoking
solvent exposure
most common site of urothelial carcinoma
bladder
diagnosis of bladder urothelial carcinoma
cystoscopy and resection
treatment of non-invasive low grade bladder urothelial carcinoma
resection/observation
T1/T2
treatment of non-invasive high grade bladder urothelial carcinoma
intravesical therapy
BCG
T1/T2
treatment of invasive or locally advance bladder urothelial carcinoma
T2/T3
chemotherapy
radical cystectomy
treatment of T4 bladder urothelial carcinoma
chemotherapy
associated with Lynch syndrome (MLH1 MSH2)
upper tract UC
colon cancer
management of low grade upper tract UC
endoscopic resection
management of high grade distal ureter UC
distal ureterectomy with reimplant to bladder VS
radical nephrourectomy
management of high grade upper ureter or renal pelvis upper tract UC
radical nephroureterectomy
renal masses are […] until proven otherwise
RCC
most malignant causes of hematuria have
symptoms
no other symptoms
[..] % of microscopic hematuria and
[…] % of gross hematuria are due
to a malignant cause
5% micro
25% gross
a UTI is considered complicated in what patient populations?
- immunocompromised
- males
- pregnancy
- diabetes
- sepsis
which patient population should be treated for asymptomatic bacturia?
pregnancy
are males or females at an increased risk of urologic malignancy?
males
risk factors of urologic malignancy in asymptomatic microscopic hematuria
4
- advancing age (>35)
- chronic inflammation (UTIs)
- prior radiation
- smoking
risk factors for RCC
- genetic mutations
- hypertension
- obesity
- smoking
NOT age
the risk of malignancy with a solid enhancing renal mass is
80%
cell of origin for renal medullary carcinoma
papillae
cell of origin for chromophobe RCC
DCT
cell of origin for clear cell and papillary RCC
PCT
Lynch syndrome is associated with
upper tract UC
which type of cancer often causes obstruction, flank pain, and hematuria?
upper tract UC
which mutations are associated with Lynch syndrome?
MSH2
MLH1
upper tract UC
sickle cell trait is associated with which cancer type?
renal medullary carcinoma
folliculin
Birt-Hogg Dube
chromophobe RCC
c-Met
hereditary papillary RCC
papillary RCC
TSC1
angiomyoplipomas
benign renal tumors
VHL
clear cell RCC
43-68% of all microscopic hematuria cases are found to be caused by
idiopathic
before preceeding with upper tract imaging, what lab value should be obtained?
serum Cr
assess renal function
type 1 RTA is associated with what kind of stones?
calcium phosphate
indications for urgent stone management
3
- fever
- UTI
- obstruction
cysteine is more soluble in […] urine
alkaline
cysteine stones are caused by an […] disorder
mode of inheritance
autosomal recessive
perfect hexagon crystal
cysteine
the only clinical manifestation of cysteinuria is
urolithiasis
treatment of recurrent UTI in postmenopausal women with vaginal atrophy
estrogen
next best step in management for a patient with urinary retention due to BPH
catheterization
a […] is required for work-up of suspected BPH
urinalysis
most common place to find prostate cancer
peripheral zone
[…] zone hyperplasia leads to increased resistance and outlet obstruction
transition
indications for treatment of BPH
4
- recurrent UTIs
- gross hematuria
- bladder stones
- acute urinary retention