GU Flashcards
acute cystitis
usually G- rods, more common in women
sx: frequency, abd pain, dysuria
can also be tuberculous, candida, viral, chlamydia
radiation or hemorrhagic (cyclophosphamide, adenovirus)
chronic interstitial cystitis
persistent and painful, no evidence of bacterial infection
malakoplakia
yellow raised mucosal plaques in bladder, MFs with Ca++ in lysosomes (Michaelis-Gutmann bodies)
d/t chronic bacterial infection
bladder neoplasm epi and etiology
50-80 yo, M>F
smoking*, drugs (analgesics, cyclophosphamide), pelvic irradiation, shistosomiasis, chronic cystitis, aromatic amines (15-40 yr latency)
bladder neoplasm clinical
painless hematuria (80-90%) less frequent: dysuria, inc frequency, pyelonephritis, hydronephrosis
bladder neoplasm course
75% superficial, 20% invasive, 5% mets at presentation
60% single, but many are multifocal and recur after surgery frequently (50-70% in 5 yr)
bladder neoplasms: types
urothelial/ TCC - 90% squamous cell carc mixed carc adenocarcinoma small cell carc sarcoma (rhabdomyosarcoma)
urinary bladder papilloma histo
~normal urothelium,
papillary urothelial neoplasm of low malignant potential (PUNLMP) histo
thicker than papilloma, no or rare mitoses
polarity maintained
recurrence risk 30%
papillary urothelial carcinoma, low grade histo
minimally disorganized densely packed cells with mild-mod atypia
polarity lost, infrequent mitoses, may have loss of umbrella cells, may invade
recurrence risk 60%
papillary urothelial carcinoma, high grade histo
markedly disorganized with loss of polarity and marked atypia
frequent mitoses, discohesion, loss of umbrella cells
bladder carcinoma in situ gross and histo
asymptomatic; hyperemic mucosa, frequently multifocal
discohesive cells with atypia confined to mucosa = high grade
50% invade in 5 years if untreated
bladder neoplasm: genetics
chr 9 monosomy or deletion: in 30-60% papillary tumors, rare in CIS 17p deletion (p53) and 13q deletion (Rb): a/w inc recurrence rates and progression *p53 alteration may confer chemoresistance, may respond better to cisplatin
bladder squamous cell carc epi, cause, prognosis
uncommon in US, 5%
M>F
a/w chronic Schistosoma haematobium
worse prognosis than urothelial carc (25% 5 yr survival)
bladder adenocarcinoma cause and prognosis
often of urachal or metaplastic origin poor prognosis (20-40% 5 yr survival), signet ring is highly malignant variant
bladder small cell carcinoma prognosis
very poor
prostate hyperplasia: incidence, clinical, complications
m/c non-neoplastic growth in males: 20% by 40s, 90% by 90
sx: frequency, nocturia, diff start/stop, dribble, dysuria
may cause bladder distention, hypertrophy, cystitis, hydronephrosis, pyelonephritis, renal failure
BPH etiology and pathogenesis
DHT -> autocrine growth of stromal cells and paracrine growth epithelial cells
tends to involve periurethral and transitional zones
*not premalignant
BPH gross and histo
noduler, 60-100 g prostate
may compress urethra, may have focal infarction and squamous metaplasia
glands have sawtooth appearance, nuclei lack nucleoli (seen in carcinoma)
prostate cancer epi
m/c male cancer, 2nd m/c COD d/t cancer in men
highest risk: AA, uncommon in Asians