Unilateral segmental dysplasia of the vas deferens

A healthy 35-year-old male presented for vasectomy after fathering two children. Due to difficulty palpating the left vas, the patient was taken to the operating room for scrotal exploration and vasectomy. The left vas was absent; however, a 1.2 cm pearly nodule was identified in the scrotum along its suspected course. This nodule was excised, found to contain thick white pasty fluid, and confirmed vas deferens by pathology. The patient was found to have normal kidneys on renal ultrasound and was indeed a carrier for cystic fibrosis gene mutations. We herein discuss management and implications of vasal anomalies.