Dr Sanjeev Bandi MBBS.
,FRCSI, FRACS(Urology)
         Consultant Urologist
           Mackay Urology
                 Introduction
The spectrum of conditions that affect the scrotum and
 its contents ranges from incidental findings that may
 require patient reassurance only OR acute events
 that may require immediate surgical intervention.
               Normal anatomy
The normal testis is oriented in the vertical axis and
 the epididymis is above the superior pole in the
 posterolateral position.
Cremasteric reflex: Stroking/pinching the inner thigh
 should result in elevation of > 0.5 cm of the
 ipsilateral testicle.
Normal Anatomy:
    DIFFERENTIAL DIAGNOSIS
 The most common causes of acute scrotal pain in adults are
  testicular torsion and epididymitis.
 Other conditions that may result in acute scrotal pathology
  include Fournier’s gangrene, torsion of the appendix testis,
  trauma/surgery, testicular cancer,     strangulated inguinal
  hernia, Henoch-Schönlein purpura, mumps, and referred pain.
Testicular torsion
 Testicular torsion is a urologic emergency that is more
 common in neonates and postpubertal boys, although it can
 occur at any age [2].
 The prevalence     of testicular torsion in adult patients
 hospitalized with acute scrotal pain is approximately 25 to 50
 percent [2,4-7].
              Testicular Torsion
 Testicular torsion results from inadequate fixation of the testis
  to the tunica vaginalis producing ischemia from reduced
  arterial inflow and venous outflow obstruction.
 Testicular torsion may occur after an incidental event (eg,
  trauma) or spontaneously [10].
                Testicular Torsion
 It is generally felt that the testis suffers irreversible damage
  after 12 hours of ischemia due to testicular torsion [8,9].
 Infertility may result, even with a normal contralateral testis,
  because the disruption of the immunologic "blood-testis"
  barrier may expose antigens from germ cells and sperm to the
  general circulation and lead to the development of anti-sperm
  antibodies.
Clinical features and diagnosis
 The diagnosis of testicular torsion is usually determined by acute
  onset of severe symptoms and characteristic physical findings,
  although ultrasound may be needed in equivocal cases.
 The onset of pain in testicular torsion is usually sudden and often
  occurs several hours after vigorous physical activity or minor trauma
  to the testicles [11].
 There may be associated nausea and vomiting.
                Testicular Torsion
 Another typical presentation, particularly in children, is
  awakening with scrotal pain in the middle of the night or in
  the morning
                   Testicular Torsion
 The classic finding on physical
  examination is an asymmetrically
  high-riding testis on the affected
  side with the long axis of the testis
  oriented transversely instead of
  longitudinally    secondary        to
  shortening of the spermatic cord
  from the torsion, also called the
  “bell clapper deformity”
Testicular Torsion
Testicular Torsion
The cremasteric reflex
 A normal response is cremasteric contraction with elevation of
  the testis.
 The reflex is usually absent in patients with testicular torsion .
 This helps distinguish testicular torsion from epididymitis
  and other causes of scrotal pain, in which the reflex is
  typically intact [1].
              Testicular Torsion
 Prehn’s sign: Relief of scrotal pain by elevating testicle. NOT
  a reliable way to distinguish epididymitis from torsion
                           Imaging
 If the etiology of an acute scrotal process is equivocal after
  history   and    physical      examination,      color     Doppler
  ultrasonography     is   the   diagnostic     test   of   choice   to
  differentiate testicular torsion from other causes, including
  epididymitis.
 lack of immediate access to scrotal ultrasound should not
  delay surgical exploration.
                Testicular Torsion
 In a study of 56 patients who underwent surgical exploration
  for   acute   scrotal   pain   and     had   Doppler   ultrasound
  examinations performed preoperatively [4] (sensitivity 100
  percent and specificity 97 percent).
Testicular Torsion - Imaging
                       Treatment
 Treatment for suspected testicular torsion is immediate
  surgical exploration with intraoperative detorsion and
  fixation of the testes.
 Delay in detorsion of a few hours may lead to progressively
  higher rates of nonviability of the testis.
 Manual detorsion is performed if surgical intervention is not
  immediately available.
                         Surgery
 Detorsion and fixation of both the involved testis and the
  contralateral uninvolved testis should be done since
  inadequate gubernacular fixation is usually a bilateral
  defect.
 Longer periods of ischemia (>12 hours) may cause infarction
  of the testis with liquefaction requiring orchiectomy.
Testicular Torsion
               Manual detorsion
 If surgery is not immediately available (within two hours), it is
  reasonable to attempt to manually detorse the testicle [16].
 The classic teaching is that the testis usually rotates medially
  during torsion and can be detorted by rotating it outward
  toward the thigh.
               Testicular Torsion
 However, in a retrospective analysis of 200 consecutive males
  age 18 months to 20 years who underwent surgical
  exploration for testicular torsion, lateral rotation was present in
  one-third of cases [17].
successful detorsion is suggested by [18]:
 Relief of pain
 Resolution of the transverse lie of the testis to a longitudinal
  orientation
 Lower position of the testis in the scrotum
 Return of normal arterial pulsations detected with a color
  Doppler study
               Testicular Torsion
 Surgical   exploration   is   necessary   even   after   clinically
  successful manual detorsion because orchiopexy (securing
  the testicle to the scrotal wall) must be performed to prevent
  recurrence, and residual torsion may be present that can be
  further relieved [17].
Testicular Torsion
Epididymitis
     Epididymitis is the most common cause of scrotal pain in
    adults in the outpatient setting [19].
 Epididymitis is most commonly infectious in etiology, but can
    also be due to noninfectious causes (eg, trauma, autoimmune
    disease) [22].
Clinical features and diagnosis
 In acute infectious epididymitis, palpation reveals induration
  and swelling of the involved epididymis with tenderness.
 More advanced cases often present with testicular swelling
  and pain (epididymo-orchitis) with scrotal wall erythema and a
  reactive hydrocele.
                     Investigations
 A urinalysis and urine culture should be performed in all
  patients suspected of epididymitis, although urine studies are
  often negative in patients without urinary complaints [8].
 A urethral swab should be obtained in patients with urethral
  discharge and sent for culture
 Ultrasound should be performed in patients with acute onset of
  testicular pain to assess for testicular torsion.
                           Treatment
      Acutely     febrile   patients    with   sepsis     often   require
    hospitalization for intravenous hydration and parenteral
    antibiotics.    Ice,     scrotal    elevation,   and     nonsteroidal
    antiinflammatory drugs (NSAIDs) are helpful adjuncts.
 Less severe cases can be treated on an outpatient basis with
    oral antibiotics, ice, and scrotal elevation).
 Regimens that cover C. trachomatis and N. gonorrhoeae. The
  first-line treatment regimen includes ceftriaxone (250 mg
  intramuscular injection in one dose) plus doxycycline (100 mg by
  mouth twice a day for ten days).
 Quinolones alone are no longer recommended for the treatment
  of epididymitis if N. gonorrhoeae is suspected (eg, in patients with
  acute urethritis or proctitis, high risk for sexually transmitted
  disease),
Fournier's gangrene
    Fournier’s gangrene is a necrotizing fasciitis of the
    perineum caused by a mixed infection with aerobic/anaerobic
    bacteria, which often involves the scrotum.
 Characterized by severe pain that generally starts on the
    anterior abdominal wall, migrates into the gluteal muscles and
    onto the scrotum and penis
Fournier’s gangrene sec to LGV
                    Treatment
 Treatment of necrotizing fasciitis consists of early and
  aggressive surgical exploration and debridement of necrotic
  tissue, antibiotic therapy, and hemodynamic support as
  needed.
 Antibiotic therapy alone is usually associated with a 100
  percent mortality rate, highlighting the need for surgical
  debridement.
   Torsion of the appendix testis
 Testicular pain from torsion of the appendix testis is usually more
  gradual than with testicular torsioIt is the leading cause of acute
  scrotal pathology in childhood. Torsion of the appendix testis
  rarely occurs in adults [29].
 It is not uncommon for patients to have several days of scrotal
  discomfort before they present for evaluation. Pain ranges widely
  from mild to severe.
 Careful inspection of the scrotal wall at this location may detect the
  classic "blue dot" sign caused by infarction and necrosis of the
  appendix testis .
                    management
 Management of acute torsion of the appendix testis usually
  includes conservative treatment, which includes rest, ice, and
  NSAIDs.
 Recovery is generally slow with this approach, and pain may
  last for several weeks to months.
 Surgical excision of the appendix testis is reserved for patients
  who have persistent pain.
Trauma
 only rarely does trauma result in severe testicular injury,
  usually due to compression of the testis against the pubic
  bones from a direct blow or straddle injury.
 The spectrum of traumatic complications can range from a
  hematocele to infection with pyocele to testicular rupture..
 Testicular rupture requires surgical repair. Lesser injuries are
  managed according to the clinical severity and often can be
  treated conservatively.
                                
Testicular cancer
 While most testicular tumors present as painless nodules or
  masses, rapidly growing germ cell tumors may cause acute
  scrotal pain secondary to hemorrhage and infarction.
 A mass is generally palpable, and ultrasound is usually
  sufficient to make a diagnosis of testicular cancer.
Referred pain
 Men who have the acute onset of scrotal pain without local
  inflammatory signs or a scrotal mass on examination may be
  suffering from referred pain to the scrotum.
 The diseases that may cause referred scrotal pain are diverse,
  reflecting the anatomy of the three somatic nerves that travel
  to the scrotum: the genitofemoral, ilioinguinal, and posterior
  scrotal nerves [31].
Referred pain
Causes of referred pain include :
 abdominal aortic aneurysm
 urolithiasis
 lower lumbar or sacral nerve root compression
 retrocecal appendicitis
 retroperitoneal tumor
 Post herniorrhaphy pain.
Summary
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