Hydrocele of the canal of Nuck: a rare differential diagnosis for an inguinal hernia

due to the unfamiliarity of clinicians with this pathology. There are three different types of hydrocele of the canal of Nuck, with type 1 being the most common, typically presenting as a unilocular cystic lesion with no communication with the peritoneal cavity. We present a case of a two-month-old female patient with an enlarging inguinal swelling raising the suspicion for an inguinal hernia or lymphadenopathy, with sonographic imaging revealing a fluid collection in the canal of Nuck, suggestive of a hydrocele. Diagnostic radiology plays a crucial role in the initial diagnosis of a canal of Nuck hydrocele, and ultrasound is considered the modality of choice for early diagnosis differentiating it from other causes of inguinal swelling.