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Multimodality imaging features of Canal-of-Nuck hydrocele in adults

      Highlights

      • Canal of Nuck abnormalities are rare in adult females. The most common pathology is a hydrocele of the canal of Nuck.
      • On Ultrasound, typically they are simple cysts shows fluid attenuation, thin walled, hypoenhancing solitary focus.
      • MRI shows T2 hyperintense and T1 hypointense, non-enhancing focus with facilitation diffusion. On PET/CT there is no uptake of F-18 FDG leading to photopenia.

      Abstract

      Canal of Nuck abnormalities are common in pediatric population but may rarely present in adults. Hydrocele of the Canal of Nuck is the most common presentation in adult population. These may be symptomatic or found incidentally on imaging. We review the embryology and present imaging features of Canal of Nuck hydroceles in this case-based review article, and highlight the features on various imaging modalities, such as ultrasound, CT (Computed Tomography), MRI (Magnetic Resonance Imaging) and PET (Positron Emission Tomography). Radiologists should be aware of these findings in their practice and be able to recognize these congenital abnormalities.

      Keywords

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