UROLOGY Flashcards
What is the first line investigation for scrotal lumps?
Ultrasound scan (assess for cancer)
What are the tumour makers for testicular cancer?
Lactate dehydrogenase
AFP
beta-HCG
Where is the fluid in hydrocoele?
Peritoneal fluid between parietal and visceral layers of tunica vaginalis
What is a varicocoele?
Dilatation of the pampiniform plexus
What are the consequences of a varicocoele?
Infertility and testicular atrophy
How is a varicocoele managed?
Embolisation (examine abdo for renal cancer)
What are epididymal cysts?
Benign fluid filled sac
How is the pain on epididymitis relieved?
Elevation of the testes
How is a testicular lymph caused by inguinal hernia presenting?
Cannot ‘get above’
What is the most common malignancy in men 20-40?
Testicular cancer
How does testicular torsion present?
•Tender
•Raised
•Swollen
What is the main cause of orchitis?
Mumps
What causes acute urinary retention?
BPH
Constipation (compresses urethra)
Anti-muscarinics
What are the clinical features of acute urinary retention?
Suprapubic pain
- *Palpable** bladder
- *PR** for prostate / constipation
What are the investigations for acute urinary retention?
Post-void bedside bladder scan
What is high pressure urinary retention?
Back up into the renal tract
What is the management of acute retention?
Urethral catheterisation
Treat underlying cause
What causes chronic urinary retention?
BPH
Pelvic prolapse
Upper motor neurone disease (MS or Parkinson’s)
How does chronic urinary retention present?
- Painless urinary retention
- Weak stream
- Hesitancy
- Overflow incontinence (worse at night- nocturnal enuresis)
What are the investigations for urinary retention?
Post coid bladder scan showing retained urine
Bloods: FBC, U&Es, CRP
What is the management of chronic retention?
- Catheterisation (>1L)
- NO TWOC (long term catheter till definitive management)
What are some complications of chronic urinary retention?
UTI
Bladder calculi
What is pseudohaematuria?
Red/brown urine not secondary to haaemoglobin
Causes incl. rifampicin, hyperbilirubinuria, myoglobinuria
What are some urology differentials for haematuria?
- Infection (pyelonephritis, cystitis or prostatitis)
- Malignancy (prostate adenocarcinoma)
- Renal calculi
- Trauma / recent surgery
- Radiation cystitis
- Parasitic, commonly schistosomiasis
What does terminal haematuria suggest?
Severe bladder irritation
Why are work/travel questions added for haematuria?
Work (dye industry)
Travel = schistosomiasis
What are the investigations for haematemesis?
- Urinalysis (nitrites/leukocytes = infection)
- Bloods (FBC, U&Es, clotting)
- Prostate specific antigen (PSA)
(1+ blood on dipstick is required for certainty - not trace)
When should haematuria be referred for urgent referral?
Aged > 45 with unexplained visible haematuria
Aged > 60 with unexplained non-visible haematuria (with dysuria/ raised WCC)
What is the gold standard for assessing lower urinary tract?
Flexible cystoscopy (local anaesthetic)
What are common causes of LUTS in men and women?
Men = BPH, UTI, malignancy, detrusor muscle weakness
Women = UTI, menopause, malignancy, stricture
What are the two categories of LUTS?
Storage = urgency, frequency, nocturia, urgency incontinence
Voiding = hesitancy, intermittency, straining, terminal dribbling
What associated questions can be added about LUTS?
- Visible haematuria
- Suprapubic discomfort
- Colicky pain
Digital rectal exam
What specialist investigations are there for LUTS?
Urodynamic studies
Upper urinary tract imaging (ultrasound / CT scanning)
What conservative options are there for LUTS?
- Regulate fluid intake (no caffeine/alcohol)
- Urethral milking (mabually empty bulbar urethra)
- Double voiding (voiding immediately again after)
- Pelvic floor exercises
What medication can be used for over active bladder?
Anticholinergics (e.g. oxybutynin, tolterodine)
B3 andrenic agonist (e.g. mirabegron)
What medication can be used for BPH?
Alpha blockers (tamsulosin)
5α-reductase inhibitors (finasteride)
What can be used to aid reducing nocturia?
Desmopressin
What is a complicated (vs uncomplicated) pylonephritis?
Uncomplicated = structurally / functionally normal urinary tract in non-immunocompromised host (complicated when opposite is true)
What are the top 3 organisms for pyelonephritis?
Escherichia coli
Klebsiella
Proteus
What are some risk factors of pyelonephritis?
Flow obstruction: BPH, neuropathic bladder from spinal cord injury
Bacterial access: Female, indwelling catheter, vesico-ureteric reflux
Immunocompromise: Diabetes, corticosteroid use, HIV infection
Bacterial colonisation: calculi, intercourse
What is the classical triad for pyelonephritis?
- Fever
- Loin pain
- Nausea and vomiting
What are some differentials for back pain?
- Pyelonephritis
- Renal calculi
- Acute cholecystitis
- Ecopic pregnancy
- Pelvic inflammatory disease
- Lower lobe pneumonia
What are the investigations for pyelonephritis?
- Urinalysis (nitrites and leucocytes)
- Urinary beta-hCG
- Urine culture
- FBC, CRP (inflammation)
- U&Es
What is the management of pyelonephritis?
A-E
IV fluids
Analgesia
Antiemetics
Catheterisation
Early CT
SEVERE = NEPHROSTOMY INSERTION / PERCUTANEOUS DRAINAGE
What are some complications of pyelonephritis?
- Sepsis
- Renal scarring
- Pyonephritis
- Preterm labour
What is the most common form of adult renal tumour?
Renal cell carcinoma (<15% incl TCC)
What are the risk factors of renal cell carinoma?
- Smoking
- Dialysis
- HTN
- Obesity
How does RCC present?
- Haematuria
- Flank pain / mass
- Lethargy
- Weight loss
- Left varicocoele
What are some paraneoplastic syndromes caused by ectopic secretion of hormones by RCC?
Polycythaemia due to erythropoetin
Hypercalcaemia due to parathyroid hormone
Hypertension due to renin
What is the imaging for suspected RCC?
Ultrasound or CT with IV contrast is gold standard
What are some risk factors for developing renal cysts?
Increasing age
Smoking
HTN
Male
ADPCD
What is ADPKD associated with in the head? (and elsewhere)
Berry aneurysm formation (subarachnoid haemorrhage), mitral valve disease, liver cysts
What are the features of renal cysts?
Incidentally on abdo imaging
Flank pain (infected/rupture)
Haematuria
Uncontrolled hypertension (ADPKD)
What is the imaging for renal cysts?
CT or MRI imaging (pre and post enhancement scans)
How are cysts managed?
Simple = no further follow up
Complicated = analgesia or needle aspiration
What is the only radiolucent stone?
Urate stones
What causes urate stones?
High levels of purine in the blood (red meats)
What are the location where ureteric stones lodge?
PUJ
Crossing pelvic brim
VUJ (vesicoureteric junction)
How do renal stones present?
- Ureteric colic
- Haematuria
- Flank tenderness
What are differentials for flank pain?
- Renal stone
- Pyelonephritis
- Ruptured AAA
- Biliary pathology
- Bowel obstruction
- Lower lobe pneumonia
What are some investigations for renal stone?
- Urine dip (haematuria)
- Bloods (FBC, CRP - infection)
- U&Es (renal function)
- Urate and calcium levels
NON CONTRAST CT KUB
Ultrasound scan for hydronephritis
How to manage patients with renal stones?
Fluid resus (patients are often dehydrated)
Stones normally pass spontaneously
ANALGESIA (NSAIDs per rectum)
When should a patient with a stone be admitted?
- AKI
- Uncontrolled pain
- Evidence of infected stone
- Large stone >5mm
How are patients with obstruction and renal calculi managed?
Nephrostomy (temporarily drain) or retrograde stent insertion
What are some definitive treatments of stones?
- Extracorrporeal Shock Wave Lithotripsy (ESWL) (contraindications are pregnancy or stone over bony landmark)
- Percutaneous nephrolithotomy (PCNL) (larger stones)
-
What are some complicatins from urteric stones?
Infection and post renal AKI
What foods should patients who get oxolate stones be warned against?
High oxalate foods (nuts, rubarb and sesame)
When can bladder stones be seen?
Chronic urinary retention
Schistosomiasis
What is the definitive treatment of bladder stones?
Cytoscopy allowing stones to drain/lithotripsy
What are some risk factors for SCC of the bladder?
Schistosomiasis
Bladder stones
What epithelium lines the bladder?
Urothelium (transitional)
What are the biggest risk factors for bladder cancer?
- Smoking
- Increasing age
- Industrial dyes
- Schistosomiasis infection
How does bladder cancer present?
Painless haematuria
Recurrent UTIs
What is the investigation for bladder cancer?
Urgent cytoscopy
(initally flexible under local then rigid under general - if suspicious, with biopsy taken)
What is the surgery for bladder cancer?
TURBT (transurethral resection of carcinoma in situ)
Radical cystectomy (high risk disease)
What are the different types of incontinence?
Stress (intraabdominal presure increases - weak pelvic floor)
Urge (overactive detrusor - neurogenic i.e. stroke, infection, malignancy)
Mixed
Overflow (from chronic urinary retention)
What are some risk factors for stress urge incontinence?
- Post partum
- Constipation
- Obesity
- Post-menopausal
What are the investigations for incontinence?
- Midstream urine dip (infection/haematuria)
- Post void bladder scan
- Cytoscopy
What are the non-surgical options for urge incontinence?
- Weight loss
- Reduce caffeine intake
- Avoid drinking excessive fluid volumes
- Smoking cessation
What are the managment options for stress UI?
- Pelvic floor muscle training (3 months)
- Duloxetine (SSRI) to cause stronger urethral contractions
What are the treatment options for urge urinary incontinence?
Anti-muscarinic drugs e.g. oxybutynin or tolterodine and bladder training
What are the surgical options for urinary incontinence?
Urge = botulinum toxin A injection
Stress = tension free vaginal tape
What does the prostate do?
Converts testosterone to dihydrotestosterone (DHT) using 5α-reductase.
MECHANISM OF BPH IS NOT UNDERSTOOD
What are the risk factors for BPH?
Age
Family history
Afro-caribbean
How do patients with BPH present?
- Hesitancy
- Weak steam
- Terminal dribbling
- Urinary frequency
- Nocturia
- Nocturnal enuresis
What scoring system is used to evaluate LUTS in BPH
IPSS
What are the investigations for BPH?
- Dipstick
- Post-void bladder scan
- PSA
- Ultrasound scan (for hydronephrosis)
What are the medical options for BPH? How do they work and any side effects?
α-blockers (e.g. tamsulosin) - relax prostatic smooth muscle (postural hypotension, retrograde ejaculation)
5α-reductase inhibitors (e.g. finasteride) - prevent conversion to DHT, decresing volume of prostate
What is the surgical management of prostate enlargement? What are some complications?
Transurethral resection of the prostate
Haemorrhage, sexual dysfunction, retrograde ejaculation
What is the main complication for BPH?
High-pressure retention
Recurrent UTIs
Significant haematuria
What type of cancer affects the prostate?
Adenocarcinoma
Where do prostate cancers typically affect?
Peripheral zone
What are the main risk factors for prostate cancer?
Age
Ethnicity (black / caribbean men are twice as likely to get it)
FH
What are some modifiable risk factors for prostate cancer?
- Obesity
- Diabetes
- Smoking
How does prostate cancer present?
- LUTs
- Haematuria
- Dysuria
- Incontinence
- Haematospermia
What are the differentials for enlarged prostate with LUTs?
- BPH
- Prostate cancer
- Prostatitis
What investigations are there for prostate cancer?
- PSA
- DRE
-
When can the PSA be artifically raised?
- BPH
- Prostatitis
- Vigorous exercise
- Ejaculation
- Recent DRE
How is prostate cancer diagnosed?
Biopsies of tissue
What scoring system is used for prostate cancers?
Gleason grading system
What is the surgical treatment for prostate cancer?
Radical prostatectomy
What are the side effects of radical prostatectomy?
- Erectile dysfunction
- Stress incontinence
- Bladder neck stenosis
What are the common organisms in prostatitis?
E. Coli
Enterobacter
Proteus
Chlamydia/gonorrhoea
What are risk factors for acute bacterial prostatitis?
- Indwelling catheters
- Phimosis
- Recent transrectal biopsy
- Immunoscompromised
How does acute bacterial prostatis present?
- LUTs
- Pyrexia
- Perineal pain
- Tender prostate
- Inguinal lymphadenopathy
What is the 1st line investigation for prostatitis?
Urine culture
What are some other investigations for prostatitis?
- STI screen
- Routine bloods
- Prostate abscess ruled out by transrectal prostatic ultrasound
What is the management of acute bacterial prostatitis?
- Prolonged antibiotic therapy (normally quinolone)
- Analgesia
- Medications used for BPH
What are the organisms in epididymitis on <35 and >35?
<35 = N. gonorrhoeae and C. trachomatis
>35 = E. Coli, proteus spp, Klebsiella pneumoniae
What typically causes orchitis?
Viral cause - mumps
What is the disease course of mumps?
Parotitis then orchitis
Self-resolving disease (can lead to testicular atrophy)
What are some risk factors for epididymitis?
- MSM
- Multiple sexual partners
- Catheterisation
- BPH
How does epididymitis present?
- Dysuria
- Red and swollen
- Tender to palpate
- Associated hydrocoele
- Intact cremasteric reflex
- Prehn’s sign (pain in alleviated by raising)
What are the differentials for a painful and swollen testicle?
- Testicular torsion (pain is sudden)
- Epididymitis
- Testicualr abscess
- Epididymal cyst
-
What are the investigations for epididymitis?
- Urine dipstick
- First-void urine for STIs
- FBC and CRP for infection
What imaging for epididymitis?
Normally clinical diagnosis however ultrasound imaging can be used
What is the management for epididymitis?
Abx
Abstinence from sex until abx complete
What are the types of testicular cancer?
Germ cell tumours (95%)
Non germ cell tumours (seminomas/non-seminomas)
What cells comprise NGCT?
Leydig/sertoli cells.
USUALLY BENIGN
What is a teratoma an example of?
Non-seminomatous GCT (along with yolk sac, choriocarcinoma, etc)
What are some risk factors for testicular cancer?
Cryptorchidism (undescended testis)
Previous testicular malignancy
Positive family history
How does a testicular tumour appear?
Unilateral painless testicular lump
Irregular, firm and fixed
Where is the lump drainage from the testes?
Para-aortic nodes
Name some differentials for a scrotal lump?
- Epididymal cyst
- Haematoma
- Epididymitis
- Hydrocoele
- Testicular cancer
What are the investigations for testicular cancer? Incl. tumour markers
Tumour markers = bHCG, AFP, LDH
Scrotal ultrasound
Staging with CT
No trans-scrotal percutaneous biopsy as can cause seeding
What is the surgery option for testicular cancer?
Inguinal radical orchidectomy
What is testicular torsion?
Spermatic cord and contents twists within the tunica vaginalis
What deformity leads to an increased risk of torsion?
Males with horizontal lie of testes aka bell-clapper deformity
What are the risk factors for torsion?
Age
Previous testicular torsion
FH
Undescended testes
How does the testes appear with torsion?
Unilateral testicular pain
High lying postion with absent cremasteric reflex
Negative prehns sign (pain doesnt go away)
What are the investigations for torsion?
Normally clinical diagnosis (urgent surgical exploration)
Doppler ultrasound can be used to investigate blood flow to the testis
What term is used for the fixing of testes after torsion?
Bilateral orchidopexy
What are the main risk factors for urethritis?
< 25 years old
MSM
Previous STIs
Recent new sexual partner
More than 1 partner in past year
How does urethritis present?
- Dysuria
- Penile irritation
- Discharge
What is reactive arthritis?
Sterile inflammatory arthritis caused by autoimmune response to distant joints
What is reactive arthritis commonly caused by?
Clamydia Teachomatis
Campylobacter spp
Shigella
What is the triad in reactive arthritis?
Conjunctivits
Arthritis
Urethritis
What are some differentials for dysuria?
Balanitis (inflammation of glans penis)
Acute prostatitis (ejaculatory pain, LUTs)
Cystitis (dysuria / freqency)
What are the investigations for urethritis?
Culture of urethral swabs
Gold standard is first-void urine sent for nucleic acid amplification test
What is the treatment for urethritis?
Gonococcal = ceftriaxone
Non-gonococcal = Doxy or Azithromycin
What is Fournier’s gangrene?
Necrotising fasciitis affecting the perineum
Where does necrotising fasciitis infect?
- Subcut tissue
- Fascia
What are the alpha-haemolytic and beta haemolytic streps?
Alpha = S. pneumoniae, S. Viridans
Beta:
- Group A = S. Pyogenes
- Group B = S. Agalactiae (harmlessly colonises)
Name 2 risk factors for Fournier’s gangrene?
- Diabetes
- Excess alcohol
- Poor nutritional state
How does Fourn’ers Gangrene present?
Severe pain, out of proportion
Pyrexia
Skin necrosis
What organisms typically cause Fournier’s gangrene?
E. Coli
S. Pyogenes
What is the management for Founier’s gangrene?
Urgent surgical debridgement
What is paraphimosis?
Inability to pull forward a retracted foreskin
What are some risk factors for paraphimosis?
- Phimosis
- Urethral catheter
- Poor hygiene
What are the management options of paraphimosis?
- Analgesia
- Manual pressure on glans to reduce oedema then reduction
- Dorsal slit/emergency circumcision
What virus is penile cancer associated with?
HPV 16, 6 and 18
What is the most common penil malignancy?
Squamous cell carcinoma
Name some risk factors for penile cancer?
HPV infection 6, 16, 18
Phimosis
Smoking
Lichen sclerosis
How does penile cancer present?
Ulcerating lesion on the penis (painless)
Inguinal lymphadenopathy
What are the differentials for ulcerations on the penis?
Infection: Herpes simplx / Syphilis
Inflammation: Psoriasis, balanitis
How is penile cancer diagnosed?
Penile biopsy
What is priapism?
Unwanted painful erection for more than 4 hours
What are the two forms of priapism?
High flow: blood enters corpus cavernosum more quickly than it can be drained (through trauma usually)
Low flow (ischaemic): veno-occlusive caused by blocking of the venous drainage
What is a penile fracture?
Traumatic rupture of corpus cavernosa and tunica albuginea
How does a penis fracture present?
- Snap followed by pain and cessation of erection
- Pain and swelling, deviation to opposite side
What is the management of penile fractures?
Analgesia
Anti-emetics
Surgical exploration and repair