- •Hematuria II: causes and investigation
- •Hematospermia
- •Lower urinary tract symptoms (LUTS)
- •Nocturia and nocturnal polyuria
- •Flank pain
- •Urinary incontinence in adults
- •Genital symptoms
- •Abdominal examination in urological disease
- •Digital rectal examination (DRE)
- •Lumps in the groin
- •Lumps in the scrotum
- •2 Urological investigations
- •Urine examination
- •Urine cytology
- •Radiological imaging of the urinary tract
- •Uses of plain abdominal radiography (KUB X-ray—kidneys, ureters, bladder)
- •Intravenous pyelography (IVP)
- •Other urological contrast studies
- •Computed tomography (CT) and magnetic resonance imaging (MRI)
- •Radioisotope imaging
- •Post-void residual urine volume measurement
- •3 Bladder outlet obstruction
- •Regulation of prostate growth and development of benign prostatic hyperplasia (BPH)
- •Pathophysiology and causes of bladder outlet obstruction (BOO) and BPH
- •Benign prostatic obstruction (BPO): symptoms and signs
- •Diagnostic tests in men with LUTS thought to be due to BPH
- •Why do men seek treatment for their symptoms?
- •Watchful waiting for uncomplicated BPH
- •Medical management of BPH: combination therapy
- •Medical management of BPH: alternative drug therapy
- •Minimally invasive management of BPH: surgical alternatives to TURP
- •Invasive surgical alternatives to TURP
- •TURP and open prostatectomy
- •Indications for and technique of urethral catheterization
- •Indications for and technique of suprapubic catheterization
- •Management of nocturia and nocturnal polyuria
- •High-pressure chronic retention (HPCR)
- •Bladder outlet obstruction and retention in women
- •Urethral stricture disease
- •4 Incontinence
- •Causes and pathophysiology
- •Evaluation
- •Treatment of sphincter weakness incontinence: injection therapy
- •Treatment of sphincter weakness incontinence: retropubic suspension
- •Treatment of sphincter weakness incontinence: pubovaginal slings
- •Overactive bladder: conventional treatment
- •Overactive bladder: options for failed conventional therapy
- •“Mixed” incontinence
- •Post-prostatectomy incontinence
- •Incontinence in the elderly patient
- •Urinary tract infection: microbiology
- •Lower urinary tract infection
- •Recurrent urinary tract infection
- •Urinary tract infection: treatment
- •Acute pyelonephritis
- •Pyonephrosis and perinephric abscess
- •Other forms of pyelonephritis
- •Chronic pyelonephritis
- •Septicemia and urosepsis
- •Fournier gangrene
- •Epididymitis and orchitis
- •Periurethral abscess
- •Prostatitis: presentation, evaluation, and treatment
- •Other prostate infections
- •Interstitial cystitis
- •Tuberculosis
- •Parasitic infections
- •HIV in urological surgery
- •6 Urological neoplasia
- •Pathology and molecular biology
- •Prostate cancer: epidemiology and etiology
- •Prostate cancer: incidence, prevalence, and mortality
- •Prostate cancer pathology: premalignant lesions
- •Counseling before prostate cancer screening
- •Prostate cancer: clinical presentation
- •PSA and prostate cancer
- •PSA derivatives: free-to-total ratio, density, and velocity
- •Prostate cancer: transrectal ultrasonography and biopsies
- •Prostate cancer staging
- •Prostate cancer grading
- •General principles of management of localized prostate cancer
- •Management of localized prostate cancer: watchful waiting and active surveillance
- •Management of localized prostate cancer: radical prostatectomy
- •Postoperative course after radical prostatectomy
- •Prostate cancer control with radical prostatectomy
- •Management of localized prostate cancer: radical external beam radiotherapy (EBRT)
- •Management of localized prostate cancer: brachytherapy (BT)
- •Management of localized and radiorecurrent prostate cancer: cryotherapy and HIFU
- •Management of locally advanced nonmetastatic prostate cancer (T3–4 N0M0)
- •Management of advanced prostate cancer: hormone therapy I
- •Management of advanced prostate cancer: hormone therapy II
- •Management of advanced prostate cancer: hormone therapy III
- •Management of advanced prostate cancer: androgen-independent/ castration-resistant disease
- •Palliative management of prostate cancer
- •Prostate cancer: prevention; complementary and alternative therapies
- •Bladder cancer: epidemiology and etiology
- •Bladder cancer: pathology and staging
- •Bladder cancer: presentation
- •Bladder cancer: diagnosis and staging
- •Muscle-invasive bladder cancer: surgical management of localized (pT2/3a) disease
- •Muscle-invasive bladder cancer: radical and palliative radiotherapy
- •Muscle-invasive bladder cancer: management of locally advanced and metastatic disease
- •Bladder cancer: urinary diversion after cystectomy
- •Transitional cell carcinoma (UC) of the renal pelvis and ureter
- •Radiological assessment of renal masses
- •Benign renal masses
- •Renal cell carcinoma: epidemiology and etiology
- •Renal cell carcinoma: pathology, staging, and prognosis
- •Renal cell carcinoma: presentation and investigations
- •Renal cell carcinoma: active surveillance
- •Renal cell carcinoma: surgical treatment I
- •Renal cell carcinoma: surgical treatment II
- •Renal cell carcinoma: management of metastatic disease
- •Testicular cancer: epidemiology and etiology
- •Testicular cancer: clinical presentation
- •Testicular cancer: serum markers
- •Testicular cancer: pathology and staging
- •Testicular cancer: prognostic staging system for metastatic germ cell cancer
- •Testicular cancer: management of non-seminomatous germ cell tumors (NSGCT)
- •Testicular cancer: management of seminoma, IGCN, and lymphoma
- •Penile neoplasia: benign, viral-related, and premalignant lesions
- •Penile cancer: epidemiology, risk factors, and pathology
- •Squamous cell carcinoma of the penis: clinical management
- •Carcinoma of the scrotum
- •Tumors of the testicular adnexa
- •Urethral cancer
- •Wilms tumor and neuroblastoma
- •7 Miscellaneous urological diseases of the kidney
- •Cystic renal disease: simple cysts
- •Cystic renal disease: calyceal diverticulum
- •Cystic renal disease: medullary sponge kidney (MSK)
- •Acquired renal cystic disease (ARCD)
- •Autosomal dominant (adult) polycystic kidney disease (ADPKD)
- •Ureteropelvic junction (UPJ) obstruction in adults
- •Anomalies of renal ascent and fusion: horseshoe kidney, pelvic kidney, malrotation
- •Renal duplications
- •8 Stone disease
- •Kidney stones: epidemiology
- •Kidney stones: types and predisposing factors
- •Kidney stones: mechanisms of formation
- •Evaluation of the stone former
- •Kidney stones: presentation and diagnosis
- •Kidney stone treatment options: watchful waiting
- •Stone fragmentation techniques: extracorporeal lithotripsy (ESWL)
- •Intracorporeal techniques of stone fragmentation (fragmentation within the body)
- •Kidney stone treatment: percutaneous nephrolithotomy (PCNL)
- •Kidney stones: open stone surgery
- •Kidney stones: medical therapy (dissolution therapy)
- •Ureteric stones: presentation
- •Ureteric stones: diagnostic radiological imaging
- •Ureteric stones: acute management
- •Ureteric stones: indications for intervention to relieve obstruction and/or remove the stone
- •Ureteric stone treatment
- •Treatment options for ureteric stones
- •Prevention of calcium oxalate stone formation
- •Bladder stones
- •Management of ureteric stones in pregnancy
- •Hydronephrosis
- •Management of ureteric strictures (other than UPJ obstruction)
- •Pathophysiology of urinary tract obstruction
- •Ureter innervation
- •10 Trauma to the urinary tract and other urological emergencies
- •Renal trauma: clinical and radiological assessment
- •Renal trauma: treatment
- •Ureteral injuries: mechanisms and diagnosis
- •Ureteral injuries: management
- •Bladder and urethral injuries associated with pelvic fractures
- •Bladder injuries
- •Posterior urethral injuries in males and urethral injuries in females
- •Anterior urethral injuries
- •Testicular injuries
- •Penile injuries
- •Torsion of the testis and testicular appendages
- •Paraphimosis
- •Malignant ureteral obstruction
- •Spinal cord and cauda equina compression
- •11 Infertility
- •Male reproductive physiology
- •Etiology and evaluation of male infertility
- •Lab investigation of male infertility
- •Oligospermia and azoospermia
- •Varicocele
- •Treatment options for male factor infertility
- •12 Disorders of erectile function, ejaculation, and seminal vesicles
- •Physiology of erection and ejaculation
- •Impotence: evaluation
- •Impotence: treatment
- •Retrograde ejaculation
- •Peyronie’s disease
- •Priapism
- •13 Neuropathic bladder
- •Innervation of the lower urinary tract (LUT)
- •Physiology of urine storage and micturition
- •Bladder and sphincter behavior in the patient with neurological disease
- •The neuropathic lower urinary tract: clinical consequences of storage and emptying problems
- •Bladder management techniques for the neuropathic patient
- •Catheters and sheaths and the neuropathic patient
- •Management of incontinence in the neuropathic patient
- •Management of recurrent urinary tract infections (UTIs) in the neuropathic patient
- •Management of hydronephrosis in the neuropathic patient
- •Bladder dysfunction in multiple sclerosis, in Parkinson disease, after stroke, and in other neurological disease
- •Neuromodulation in lower urinary tract dysfunction
- •14 Urological problems in pregnancy
- •Physiological and anatomical changes in the urinary tract
- •Urinary tract infection (UTI)
- •Hydronephrosis
- •15 Pediatric urology
- •Embryology: urinary tract
- •Undescended testes
- •Urinary tract infection (UTI)
- •Ectopic ureter
- •Ureterocele
- •Ureteropelvic junction (UPJ) obstruction
- •Hypospadias
- •Normal sexual differentiation
- •Abnormal sexual differentiation
- •Cystic kidney disease
- •Exstrophy
- •Epispadias
- •Posterior urethral valves
- •Non-neurogenic voiding dysfunction
- •Nocturnal enuresis
- •16 Urological surgery and equipment
- •Preparation of the patient for urological surgery
- •Antibiotic prophylaxis in urological surgery
- •Complications of surgery in general: DVT and PE
- •Fluid balance and management of shock in the surgical patient
- •Patient safety in the operating room
- •Transurethral resection (TUR) syndrome
- •Catheters and drains in urological surgery
- •Guide wires
- •JJ stents
- •Lasers in urological surgery
- •Diathermy
- •Sterilization of urological equipment
- •Telescopes and light sources in urological endoscopy
- •Consent: general principles
- •Cystoscopy
- •Transurethral resection of the prostate (TURP)
- •Transurethral resection of bladder tumor (TURBT)
- •Optical urethrotomy
- •Circumcision
- •Hydrocele and epididymal cyst removal
- •Nesbit procedure
- •Vasectomy and vasovasostomy
- •Orchiectomy
- •Urological incisions
- •JJ stent insertion
- •Nephrectomy and nephroureterectomy
- •Radical prostatectomy
- •Radical cystectomy
- •Ileal conduit
- •Percutaneous nephrolithotomy (PCNL)
- •Ureteroscopes and ureteroscopy
- •Pyeloplasty
- •Laparoscopic surgery
- •Endoscopic cystolitholapaxy and (open) cystolithotomy
- •Scrotal exploration for torsion and orchiopexy
- •17 Basic science of relevance to urological practice
- •Physiology of bladder and urethra
- •Renal anatomy: renal blood flow and renal function
- •Renal physiology: regulation of water balance
- •Renal physiology: regulation of sodium and potassium excretion
- •Renal physiology: acid–base balance
- •18 Urological eponyms
- •Index
322 CHAPTER 6 Urological neoplasia
Urethral cancer
Primary urethral cancer is rare, occurring in elderly patients. It is 4 times more common in women than in men.
Risk factors
Urethral stricture and sexually transmitted disease are implicated. Direct spread from tumor in the bladder or prostate is more common.
Pathology and staging
Seventy-five percent of cases are SCC, occurring in the anterior urethra; 15% are UC, occurring in the posterior/prostatic urethra; 8% are adenocarcinoma; and the remainder include sarcoma and melanoma.
Urethral cancer metastasizes to the pelvic lymph nodes from the posterior urethra and to the inguinal nodes from the anterior urethra in 50% of patients.
Staging is by the TNM system (see Table 6.21) following histological confirmation of the diagnosis.
Presentation
This is often late; many patients have metastatic disease at presentation
•Painless hematuria; initial, terminal, or a bloody urethral discharge
•Voiding-type LUTS (less common)
•Perineal pain (less common)
•Periurethral abscess or urethrocutaneous fistula (rare)
•Past history of sexually transmitted or stricture disease
•Examination may reveal a hard, palpable mass at the female urethral meatus or along the course of the male anterior urethra. Inguinal lymphadenopathy, chest signs, and hepatomegaly may suggest metastatic disease.
Differential diagnosis
In men
•Urethral stricture
•Perineal abscess
•Metastatic disease involving the corpora cavernosa
•Urethrocutaneous fistula (secondary to benign stricture disease)
In women
•Urethral caruncle
•Urethral cyst
•Urethral diverticulum
•Urethral wart (condylomata acuminata)
•Urethral prolapse
•Urethral vein thrombosis
•Periurethral abscess
Investigations
Cystourethroscopy, biopsy, and bimanual examination under anesthesia will obtain a diagnosis and local clinical staging. Chest radiography and abdominopelvic CT scan will enable distant staging.
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URETHRAL CANCER |
323 |
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Table 6.21 TNM staging of urethral carcinoma |
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Tx |
Primary tumor cannot be assessed |
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T0 |
No evidence of primary tumor |
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Urethra (male and female) |
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Ta |
Noninvasive papillary carcinoma |
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Tis |
Carcinoma in situ |
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T1 |
Tumor invades subepithelial connective tissue |
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T2 |
Tumor invades corpus spongiosum, prostate, or periurethral muscle |
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T3 |
Tumor invades corpus cavernosum, prostatic capsule, vagina, or |
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bladder neck |
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T4 |
Tumor invades adjacent organs including bladder |
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Transitional cell carcinoma of the prostatic urethra |
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Tis |
Carcinoma in situ, prostatic urethra (pu) or prostatic ducts (pd) |
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T1 |
Tumor invades subepithelial connective tissue |
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T2 |
Tumor invades prostatic stroma, corpus spongiosum, or periurethral |
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muscle |
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T3 |
Tumor invades through prostatic capsule, corpus cavernosum, or |
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bladder neck |
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T4 |
Tumor invades adjacent organs including bladder |
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Nx |
Regional (deep inguinal and pelvic) lymph nodes cannot be assessed |
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N0 |
No regional lymph node metastasis |
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N1 |
Metastasis in a single lymph node <2 cm in greatest dimension |
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N2 |
Metastasis in a single lymph node >2 cm in greatest dimension |
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Mx |
Distant metastasis cannot be assessed |
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M0 |
No distant metastasis |
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M1 |
Distant metastasis present |
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Treatment
For localized anterior urethral cancer, radical surgery or radiotherapy are the options. Results are better with anterior urethral disease (see Box 6.8). Male patients would require perineal urethrostomy. Postoperative incontinence due to disruption of the external sphincter mechanism is minimal unless the bladder neck is involved, but the patient would need to sit to void.
For posterior/prostatic urethral cancer, cystoprostatourethrectomy should be considered for men in good overall health, while anterior pelvic exenteration (excision of the pelvic lymph nodes, bladder, urethra, uterus, ovaries, and part of the vagina) should be considered for women.
324 CHAPTER 6 Urological neoplasia
In the absence of distant metastases, inguinal lymphadenectomy is performed if nodes are palpable, since 80% contain metastatic tumor.
For locally advanced disease, a combination of preoperative radiotherapy and surgery is recommended.
For metastatic disease, chemotherapy is the only option with regimens of systemic cisplatin, bleomycin, and methotrexate or 5-fluorouracil and methotrexate in addition to surgical resection in the treatment of metastatic urethral SCC.
Staging
Staging is by the TNM (2002) classification following histological confirmation of the diagnosis (see Table 6.21). All cases rely on physical examination and imaging, the pathological classification (prefixed p) corresponding to the TNM categories.
Box 6.8 5-year survival
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Surgery: anterior urethra |
50% |
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Surgery: posterior urethra |
15% |
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Radiotherapy |
34% |
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Radiotherapy and surgery |
55% |
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326 CHAPTER 6 Urological neoplasia
Retroperitoneal fibrosis
Retroperitoneal fibrosis (RPF) was first described by the French urologist Albarran at the beginning of the 20th century. The condition is also known as Ormond disease.
Benign causes
Idiopathic RPF comprises two-thirds of benign cases. A fibrous plaque extends laterally and downward from the renal arteries, encasing the aorta, inferior vena cava, and ureters, but rarely extends into the pelvis. The central portion of the plaque consists of woody scar tissue, while the growing margins have the histological appearance of chronic inflammation. It may be associated with the following:
•Mediastinal, mesenteric, or bile-duct fibrosis
•Drugs, including methysergide, B-blockers, haloperidol, amphetamines, and LSD
•Chronic urinary infections including TB and syphilis
•Inflammatory conditions such as Crohn’s disease or sarcoidosis
•Abdominal aortic aneurysm (AAA), intra-arterial stents, and angioplasty may induce idiopathic fibrosis due to periaortitis,
hemorrhage, or an immune response to insoluble lipoprotein.
Malignant causes
•Lymphoma is the most common cause; RPF is also sometimes due to sarcoma.
•Metastatic or locally infiltrative carcinoma of the breast, stomach, pancreas, colon, bladder, prostate and carcinoid tumors
•Radiotherapy may cause RPF, although this is rare today with more precise field localization.
•Chemotherapy, especially following treatment of metastatic testicular tumors, may leave fibrous masses encasing the ureters. These may or may not contain residual tumor.
Presentation
Idiopathic RPF classically occurs in the fifth or sixth decade of life.
Men are affected twice as commonly as women. In the early stage, symptoms are relatively nonspecific, including loss of appetite and weight, low-grade fever, sweating, and malaise. Lower limb swelling may develop. Dull, non-colicky abdominal or back pain is described in up to 90% of patients. Later, the major complication of the disease develops: bilateral ureteral obstruction causing anuria and renal failure.
Examination may reveal hypertension in up to 60% of patients and an underlying cause such as an AAA.
Investigations
Inflammatory serum markers are elevated in idiopathic RPF (60–90% elevated ESR). Pyuria or bacteriuria is common.
Ultrasound will demonstrate unior bilateral hydronephrosis.
RETROPERITONEAL FIBROSIS 327
CT, IVP, or retrograde ureterography will reveal tapering medial displacement of the ureters with proximal dilatation and will exclude calculus disease. Up to one-third of patients will have a nonfunctioning kidney at the time of presentation due to long-standing obstruction.
CT-guided fine needle or laparoscopic biopsy of the mass may confirm the presence of malignant disease, but a negative result does not exclude malignancy.
Management
Emergency management of a patient presenting with established renal failure requires relief of the obstruction by percutaneous nephrostomy or ureteral stenting. Fluid and electrolyte losses need to be replaced following relief of bilateral ureteral obstruction and postobstructive diuresis. Assess with daily weighing and measurement of blood pressure lying and standing.
Steroids may decrease the edema often associated with RPF and may help reduce the obstruction. If used, they are usually discontinued when inflammatory markers (such as ESR or CRP) return to normal. The antiestrogen tamoxifen and cyclophosphamide have been used successfully in some patients but are not considered the standard of care.
Surgical ureterolysis with omental wrap is often necessary to free and insulate the ureters from the encasing fibrous tissue. This can be accomplished by the open, laparoscopic or hand-assisted laparoscopic approaches. Biopsies are taken to exclude malignancy. If malignancy is noted, treatment is directed at the cause.
Monitor patient for recurrent disease with serum creatinine and ultrasound every 3–6 months for 5 years.