Urology Flashcards
Define a scrotal lump
Abnormal mass or swelling within the scrotum
6 stages of inspection of a scrotal lump
Site Size Shape Symmetry Skin changes Scars present
Palpation techniques of a scrotal lump
Tenderness Temperature Transillumination Consistency Attachments Mobility Pulsation Fluctuation Irreducibly Regional lymph nodes Edge
Investigations for a scrotal lump
USS of scrotum
Blood tests - lactate dehydrogenase, alpha-fetoprotein and beta-hCG
Differential diagnosis for a scrotal lump
Extra-testicular - hydrocoele - varicocoele - epididymal cysts - epididymitis - inguinal hernia Testicular - testicular tumour - orchitis - testicular torsion - benign testicular lesions
Define a hydrocoele
Abnormal collection of peritoneal fluid between the parietal and visceral layers of the tunica vaginalis
Presentation of a hydrocoele
Painless fluctuant swelling - transluminates
Treatment of congenital hydrocoeles
No treatment - resolve spontaneously
Patent processus vaginalis - ligation to prevent recurrence
Causes of hydrocoeles in older males
Primary - idiopathic Secondary - trauma - infection - malignancy
Define a varicocoele
Abnormal dilation of the pampiniform venous plexus within the spermatic cord
Presentation of a varicocoele
Lump - bag of worms
Disappear on lying flat
Complications of a varicocoele
Infertility
Testicular atrophy
Red flag signs with a varicocoele
Acute onset
Right-sided
Remain when lying flat
Treatment for a varicocoele
No treatment if asymptomatic
Embolisation
Ligation of spermatic veins
Define an epididymal cyst
Benign fluid-filled sacs arsing from the epididymis
Presentation of an epididymal cyst
Smooth fluctuant nodule
Found above and separate from the testis
Transilluminate
Define epididymitis
Inflammation of the epididymis
Presentation of epididymitis
Unilateral acute onset scrotal pain Associated swelling, erythematous overlying skin Systemic symptoms - fever Tender on examination Pain relieved by elevation
Treatment of epididymitis
Oral antibiotics
Analgesia
Examination findings of an inguinal hernia
Cannot get above
Cough may exacerbate swelling
Disappear upon lying flat
Presentation of testicular tumour
Painless
Firm irregular mass
Does not transilluminate
Treatment for testicular tumour
Radical inguinal orchidectomy
Chemotherapy
Define orchitis
Inflammation of the testis
Causes of orchitis
Mumps virus
Define testicular torsion
Twisting of the testis
Presentation of testicular torsion
Sudden-onset very severe unilateral scrotal pain
Associated N+V
Extremely tender, raised and swollen testis
Loss of cremasteric reflex
Treatment for testicular torsion
Surgical emergency
- scrotal exploration and fixation
Benign testicular lesions
Leydig cell tumours
Sertoli cell tumours
Lipomas
Fibromas
Define acute urinary retention
New onset inability to pass urine
Leads to pain and discomfort with significant residual volume
Define acute-on-chronic urinary retention
Patients with chronic retention can also enter acute retention
Due to an acute deterioration of underlying pathology or new aetiology
Causes of acute urinary retention
BPH
UTI
Constipation
Severe pain
Medications - anti-muscarinics, spinal or epidural anaesthesia
Neurological - peipheral neuropathy, iatrogenic nerve damage, MS, Parkinson’s disease
Clinical features of acute urinary retention
Acute suprapubic pain
Inability to micturate
Palpable distended bladder
Suprapubic tenderness
Investigations for acute urinary retention
DRE - assess for prostate enlargement and constipation
Post-void bladder scan - volume of retained urine
Catheterised specimen of urine (CSU) - infection
USS of urinary tract - hydronephrosis
Define high pressure urinary retention
Urinary retention causing high intra-vesicular pressures which overcome anti-reflux mechanism
Hydroureter and hydronephrosis
Impairs kidneys clearance ability
Management of acute urinary retention
Immediate urethral catheterisation - measure volume
Treat underlying causes
Check for evidence of infection
TWOC
Those with large retention volume need to be monitored for evidence of post-obstructive diuresis
Complications of acute urinary retention
AKI
Chronic kidney injury
UTI
Renal stones
Define chronic urinary retention
Painless inability to pass urine
- long standing retention
- bladder distension
- bladder desensitisation
Common causes of chronic urinary retention
BPH Urethral strictures Prostate cancer Pelvic prolapse Pelvic mass - fibroids MS Parkinson's disease
Clinical features of chronic urinary retention
Painless urinary retention
Voiding LUTS - weak stream and hesitancy
Overflow incontinence - worse at night
Palpable distended bladder
Investigations for chronic urinary retention
Post-void bladder scan
Routine bloods
USS of urinary tract
Management of chronic urinary retention
TWOC
Long term catheterisation
Monitor urine for post-obstructive diuresis
Treat underlying cause
Complications of chronic urinary retention
UTI
Bladder calculi
Chronic kidney disease
Define haematuria
Presence of blood in urine
Classed as visible or non-visible
Define pseudohaematuria
Red or brown urine that is not secondary to the presence of haemoglobin
- medication - rifampicin or methyldopa
- hyperbilirubinuria
- myoglobinuria
- certain foods
Common causes of haematuria
UTI Urothelial carcinoma Renal calculi Adenocarcinoma of prostate BPH Trauma Radiation cystitis
Investigations for haematuria
Urinalysis - nitrites/leukocytes = infection Baseline bloods PSA Flexible cystoscopy US KUB CT urogram
Define LUTS
Lower urinary tract symptoms
Array of symptoms affecting the control and quality of micturition in the lower urinary tract
Common causes of LUTS in men
BPH UTI Urological malignancy Detrusor muscle weakness of instability Chronic prostatitis Urethral stricture External compression - pelvic tumour, faecal impaction Neurological disease - MS, spinal cord injury
Common causes of LUTS in females
UTI
Menopause
Urological malignancy
Detrusor muscle weakness or instability
Urethral stricture
External compression - pelvic tumour, faecal impaction
Neurological disease - MS, spinal cord injury
State some LUTS storage symptoms
Increased urinary frequency
Nocutria
Increased sense of urgency to urinate
Urge incontinence
State some LUTS voiding symptoms
Hesitancy in micturition
Poor flow
Terminal dribble
Feeling of incomplete emptying
Investigations for LUTS
Post-void bladder scanning and flow rate Urinary frequency and volume chart Urinalysis Urine culture PSA Urodynamic studies Cystocopy US KUB CT urogram
Conservative management of LUTS
Treat underlying pathology
Regulating fluid intake - reduce caffeinated and alcoholic beverages
Urethral milking - manually emptying bulbar urethra of residual urine
Double voiding - passing urine and then remaining for a short time before passing urine again
Pelvic floor exercises
Bladder training techniques
Pharmacological management of LUTS
Anticholinergics - oxybutynin, tolterodine - relax bladder Alpha blockers - alfuzosin, tamsulosin - reduce prostate size 5α-reductase inhibitors - finasteride - reduce prostate size in BPH Loop diuretics - furosemide, butetanide - prevent nocturia
Complications of LUTS
UTI Renal and bladder calculi Bladder wall muscle hypertrophy - overflow incontinence Renal failure Bilateral hydronephrosis Acute urinary retention
Define urinary incontinence
Involuntary leakage of urine
State the subtypes of urinary incontinence
Stress Urge Mixed Overflow Continuous
Pathophysiology of stress UI
Intra-abdominal pressure exceeds the urethral pressure
- coughing, straining, laughing or lifting
Causes of stress UI
Weakness of pelvic floor muscles - post-partum Constipation Obesity Post-menopausal Pelvic surgery
Pathophysiology of urge UI
Overactive bladder (detrousor hyperactivity) leads to uninhibited bladder contraction leading to rise in intravesical pressure
Causes of urge UI
Neurogenic - previous stroke Infection Malignancy Idiopathic Medication - cholinesterase inhibitors
Define mixed UI
Combination of stress UI and urge UI
Pathophysiology of overflow UI
Normally complication of chronic urinary retention
- progressive stretching of bladder wall leads to damage of efferent fibres of sacral reflex
- loss of bladder sensation
- bladder becomes grossly distended
- constant dribbling urine
Causes of overflow UI
BPH
Spinal cord injury
Congenital defects
Define continuous UI
Constant leakage of urine
Causes of continuous UI
Anatomical abnormality
- ectopic ureter
Bladder fistulae
Severe overflow incontinence
Investigations for UI
Midstream urine dipstick
Post void bladder scan
Urodynamic assessment
Cystoscopy
Management of UI
Lifestyle advice - weight loss - reduced caffeine and alcohol intake - smoking cessation Conservative - pelvic floor muscle training - anti-muscarinic drugs - urge UI - bladder training Surgical - botulinum toxin A injections - tension-free vaginal tape - stress UI
Define epididymitis
Inflammation of the epididymis
Pathophysiology of epididymitis
Local extension of infection
- most likely sexual transmission in < 35 years
- N. gonorrhoeae
- C. trachomatis - most likely enteric organism from UTI in > 35 years
- E. coli
- Klebsiella pneumoniae
- Pseudomonas aeruginosa