Endometriosis of canal of Nuck

Endometriosis affecting the canal of Nuck is an extremely rare site for endometriosis. It is proposed that retrograde implantation of endometrial tissue into patent canal of Nuck could give rise to the condition.

Clinical presentation

The condition is presented as a painful inguinal swelling. Usually unaffected by menstrual cycle .

Radiographic features

Ultrasound

It appears as a hypoechoic nodule with poor through transmission .

MRI

MRI can provide diagnosis and evaluation of extension of endometriosis. There are two patterns observed prevalently solid and prevalently cystic. Areas of hemorrhage can be appreciated .

  • T1
    • it appears as a homogeneously hypointense nodule with hyperintense areas if there is hemorrhage.
  • T2
    • it appears as an intermediate signal intensity lesion
  • T1 C+ (Gd)
    • homogeneous enhancement is seen

See also