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.
The condition is presented as a painful inguinal swelling. Usually unaffected by menstrual cycle1.
It appears as a hypoechoic nodule with poor through transmission2.
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 appreciated2,3.
- it appears homogeneously hypointense nodule and with hyperintense areas it there is hemorrhage.
- it appears as an intermediate signal intensity lesion
T1 C+ (Gd)
- homogeneous enhancement seen
- 1. Bagul A, Jones S, Dundas S et-al. Endometriosis in the canal of Nuck hydrocele: An unusual presentation. Int J Surg Case Rep. 2011;2 (8): 288-9. doi:10.1016/j.ijscr.2011.03.008 - Free text at pubmed - Pubmed citation
- 2.Cervini P, Wu L, Shenker R et-al. Endometriosis in the canal of Nuck: Atypical manifestations in an unusual location. Can J Plast Surg. 2013;12 (2): 73-5. Free text at pubmed - Pubmed citation
- 3.Gaeta M, Minutoli F, Mileto A et-al. Nuck canal endometriosis: MR imaging findings and clinical features. Abdom Imaging. 2010;35 (6): 737-41. doi:10.1007/s00261-010-9607-7 - Pubmed citation