II. Epidemiology

  1. Most common in boys under age 3-5 years up to age 12 years old

III. Differential Diagnosis

IV. Symptoms

  1. Insidious or sudden onset of unilateral Scrotal Pain
    1. Less severe pain than with Testicular Torsion
  2. Similar characteristics of Testicular Torsion without the systemic symptoms (e.g. rare Nausea or Vomiting)

V. Signs

  1. Tiny, focally tender, palpable mass at Testis upper pole
  2. "Blue dot" sign on scrotal skin early in course
  3. Testicular Inflammation and Hydrocele are late findings

VI. Differential Diagnosis

VII. Imaging

  1. Ultrasound
    1. Critical to distinguish from Testicular Torsion

VIII. Course

  1. Pain resolves in 5-10 days (up to 14 days)

IX. Precaution

  1. Difficult to distinguish from Testicular Torsion

X. Management

  1. Urology referral indications
    1. Presentation too late to make accurate diagnosis
    2. Unable to rule-out Testicular Torsion
    3. Urologists may resect appendix Testes in cases of persistent discomfort
  2. Scrotal support (e.g. tight underwear or jock strap)
  3. NSAIDs

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Related Studies

Ontology: Torsion of appendix of testis (C0392531)

Concepts Anatomical Abnormality (T190) , Disease or Syndrome (T047)
ICD9 608.23
ICD10 N83.52 , N44.03
SnomedCT 198047009
English Torsion of hydatid of Morgagni - male, Torsion hydatid Morgani - male, Torsion of hydatid of Morgani - male, Torsion of appendix of testis, torsion of appendix testis, torsion of appendix testis (diagnosis), testicle torsion appendix, Torsion appendix testis, Torsion of hydatid of Morgagni, Torsion of appendix testis, appendix testis torsion, torsion appendix testis, Torsion of appendix of testis (disorder), hydatid; Morgagni, torsion male, Hydatid of Morgagni torsion
Spanish torsión de apéndice testicular (trastorno), torsión de hidátide de Morgani en el hombre, torsión de apéndice testicular, torsión de hidátide de Morgani en el hombre (trastorno)
Dutch hydatide; Morgagni, torsie man