Scrotal Swellings Flashcards
List the key causes of scrotal or testicular lumps
- Epididymo-orchitis
- Testicular torsion
- Hydrocele
- Varicocele
- Epididymal cyst
- Testicular cancer
- Inguinal hernia
What is Epididymo-orchitis?
Inflammation of the epididymis and testicle
Where are sperm stored and matured?
Epididymis
Where does the epididymis drain?
Into the vas deferens
List 4 causes of Epididymo-orchitis
- E. coli
- Chlamydia trachomatis
- Neisseria gonorrhoea
- Mumps
In what clinical scenario must we consider mumps?
- In patients with parotid gland swelling and orchitis
- Mumps tends only to affect the testicle, sparing the epididymis
- It can also cause pancreatitis
How does Epididymo-orchitis present?
Gradual onset (minutes to hours) with unilateral:
- Pain in testes
- Tenderness on palpation
- Swelling
- Dragging or heavy sensation
- Urethral discharge (if STI related)
- Systemic symptoms ie. fever, potentially sepsis
Key differential for epididymo-orchitis?
Testicular torsion
Both present with acute onset of pain in one testicle. If in doubt, treat as torsion
List 3 features of epididymo-orchitis which make a sexually transmitted organism more likely
- Age under 35
- Increased number of sexual partners in the last 12 months
- Discharge from the urethra
List 4 investigations for suspected epididymo-orchitis
- Urine MC & S
- Chlamydia and gonorrhoea NAAT testing on a first pass urine
- Charcoal swab of discharge for gonorrhoea
- Saliva swap for PCR testing for mumps, if suspected
- Serum antibodies for mumps, if suspected
- Ultrasound to assess for torsion or tumours
Management of epididymo-orchitis
- If acutely unwell or septic - admit for IV antibiotics
- If high risk of STI - urgent referral to GUM clinic for assessment and treatment.
- If low risk of STI offer Ofloxacin for 14 days
What are Quinolones
Powerful broad-spectrum antibiotics that have excellent gram negative cover
Often used for UTIs, pyelonephritis, epididymo-orchitis and prostatitis
2 examples of Quinolone antibiotics
Ofloxacin, levofloxacin and ciprofloxacin
List 2 important side effects of quinolones
- Tendon damage and tendon rupture ie. Achilles tendon
- Lower seizure threshold (caution in patients with epilepsy)
List 2 complications of Epididymo-orchitis
- Chronic pain
- Chronic epididymitis
- Testicular atrophy
- Sub-fertility or infertility
- Scrotal abscess
What is Testicular Torsion?
Twisting of the spermatic cord with rotation of the testicle - urological emergency
Why is testicular torsion a urological emergency?
Delay in treatment increases risk of ischaemia and necrosis of the testicle, leading to sub-fertility or infertility
Typical age affected by torsion
Typical a teenage boy - but can be any age
Trigger for testicular torsion?
Activity, such as playing sports
Presentation of testicular torsion
Acute rapid onset of unilateral testicular pain, may be associated with abdominal pain and vomiting
Sometimes abdo pain is the only symptom in boys, so examination to exclude torsion is essential
List 4 exam findings of testicular torsion
- Firm swollen testicle
- Elevated (retracted) testicle
- Absent cremasteric reflex
- Abnormal testicular lie (often horizontal)
- Rotation, so epididymis is not in normal posterior position
What is a bell-clapper deformity?
One of the causes of testicular torsion
- Normally testicle is fixed posteriorly to the tunica vaginalis (vertical)
- A bell-clapper deformity is where fixation is absent, so testicle hangs in a horizontal position (prone to rotation)
Management of testicular torsion
- Nil by mouth
- Analgesia
- Urgent senior urology assessment
- Surgical exploration of the scrotum
- Orchiopexy or orchidectomy
What is an Orchiopexy vs Orchidectomy
Orchiopexy - correcting the position of the testicles and fixing them in place
Orchidectomy - removing the testicle, if the surgery is delayed or there is necrosis
What investigation will confirm testicular torsion?
Why is this not always done?
A scrotal ultrasound
But any investigation that will delay the patient going to theatre for treatment is not recommended.