Renal 6 Flashcards
classic triad of renal cell carcinoma presentation
hematuria (MOST COMMON), CV pain, palpable mass
common sites of extension of renal cell carcinoma
renal vein and IVC (stage 3), adrenal glands (stage 4)
most common sites of metastasis of renal cell carcinoma
lungs and bone
intrinsic causes of urinary obstruction
urinary calculi, sloughed papillae, blood clots, tumor, inflammation (prostattis, ureteritis), functional disorder (neurogenic)
progression of pathogenesis of hydronephrosis
dilation ureter/pelvis -> progressive atrophy (secondary to obstruction) -> medullary dysfunction -> drop in GFR
inborn errors of metabolism of these familial conditions lead to stone formation
gout, cystinuria, hyperoxaluria
makes up 75% of stones
calcium oxalate
this makes up 15% of stones
triple/strutive stones of magnesium ammonium phosphate
associated condition of triple or struvite stones
chronic pyelonephrosis due to Proteus or Staph infection (urea-splitting bacteria)
this favors formation of stones
low urine volumes and stasis
these are stones caused by urea-splitting bacteria -> conform to calyces (create casts of calyces) -> major obstruction due to granulomatous reaction around stone
staghorn calculi
these kinds of stones are radiopaque
calcium (uric acid = radiolucent)
inflammatory reaction associated that causes Staghorn calculi formation; what cells contribute to pathogenesis?
xanthogranulomatous pyelonephritis; foamy MP, plasma cells (often with Proteus infection)
signs/symptoms that suggest acute pyelonephritis related to UTI
fever, N/V, CV tenderness, WBC casts
cause of chronic pyelonephritis
bacteria in face of vesicuoureteral reflux or obstruction
unless this is present, infection will stay localized in the bladder
vesicoureteral reflux
these conditions can cause recurrence of infection in acute pyelonephritis
unrelieved obstruction, DM, immunosuppression
scarred kidneys are very indicative of this condition
chronic pyelonephritis (associated with obstruction)
these give yellow color in chronic pyelonephritis
lipid-laden foamy MP
do ureters pass anterior or posterior to common iliac/external iliac artery?
anterior
relaxation of pelvic floor of women may lead to this -> protrusion of bladder into vagina
cystocele
primary malignant tumor of ureter; what is benign tumor?
transitional cell carcinoma; fibroepithelial polyps
pattern of inflammation in bladder characterized by soft, yellow, raised mucosal plaques 3-4 cm in diameter
malacoplakia
cells presents in malacoplakia infiltration
large foamy MP, multinucleate giant cells, some lymphocytes
associated conditions of malacoplakia
chronic bacterial infection (E coli or Proteus) immunosuppressed, transplant recipients
usual organism causing UTI; bacteria causing UTI in women commonly
E coli (most common), Proteus, Klebsiella, Enterobacter (gram neg bacilli); Staph saprophyticus
risk factors for transitional cell carcinoma
cigarette smoking, 2-naphthylamine/aniline dyes, chronic analgesic use, cyclophosphamide, Schistosoma haematobium infection
bladder infection that causes squamous cell metaplasia -> leads to squamous cell cancer
Schistosoma haematobium
this is opening of urethra on ventral surface of penis
hypospadias
opening of urethra on dorsal surface of penis
epidspadias
zone of prostate most commonly involved with cancer
peripheral
zone of prostate where most of BPH occurs
periurethral (causes obstruction)
morphology of acute bacterial prostatitis
suppurative inflammation from E.coli/gram negatives (enterococci, Staph)
signs/symptoms of acute bacterial prostatitis
fever, chills, dysuria, tender and soft prostate (on rectal exam)