Torsion of the hydatid of Morgagni

• Hydatid of Morgagni:

  • Torsion of this structure can lead to a similar presentation as testicular torsion
  • Hydatid of Morgagni = testicular appendage (appendix of testis)
  • Remnant of the Mullerian duct
  • Located on the superior pole of the testis
• Torsion of these structures is more common in a younger age group than testicular torsion, and the scrotum is usually less erythematous with a normal lie of the testis.
• The ‘blue dot’ sign may be present in the upper half of the hemiscrotum, which is the visible infarcted hydatid. 
• Torsion of the hydatid of Morgagni is not a surgical emergency like testicular torsion. Managed conservatively.

  Surgical exploration still needed if any chance of testicular torsion