Hydrocele of the Canal of Nuck: A Rare Case.

Hydrocele of the canal of Nuck in adults is an extremely rare condition. It results from the incomplete obliteration of the processus vaginalis, which is a tubular structure that connects the peritoneal cavity to the labia majora during foetal development. Failure of this structure to close can lead to the accumulation of peritoneal fluid in the inguinal canal, resulting in a hydrocele. A 40-year-old lady presented to our OPD with a history of left groin pain and tenderness of one-year duration. No obvious swelling was noted clinically. No other clinical abnormality was seen. An ultrasonogram and MRI of the pelvis played a key role in arriving at a diagnosis. She was then taken up for excision of the hydrocele along its entire extent. Though a rare presentation, it should be among the differential diagnosis in a female with inguinal pain or an inguinal swelling. Accurate diagnosis through imaging and appropriate surgical management can lead to favourable outcomes.