Cystic lymphangioma develops due to the interruption of lymphatic-venous connections during embryogenesis, leading to the formation of a cystic lesion containing lymph. These lesions fall under the ISSVA classification of vascular malformations. The first documented case dates back to 1828, with further elucidation provided by Sabin in 1909 and 1919. Cervicofacial region is the most common site, often showing early-stage symptoms. Inguinal location is rare, but if complications arise, it may present as a strangulated inguinal hernia. The tumor's severity lies in its compression and invasion of the aerodigestive tract and adjacent organs. Diagnosis relies on imaging techniques such as ultrasound and computed tomography, which help determine the mass's nature, boundaries, and relationship with neighboring structures. Asymptomatic lesions are generally monitored, while symptomatic ones require complete surgical excision to minimize the risk of recurrence. At Cheikh Khalifa University Hospital, we present a case highlighting our urology department's experience in diagnosis, patient care, and surgical treatment.