Penile Epidermal Cyst in a Patient With Augmentation Penoplasty
A 44-year-old male patient who was diagnosed with liver cirrhosis was referred to the urologic department because of a slowly growing penoscrotal swelling. The patient had a history of augmentation penoplasty with a dermal fat graft 20 years previously. The mass was recognized 4 years ago, but it was very small and asymptomatic at that time. As the swelling slowly increased in size, however, the patient had difficulty with sexual intercourse. He had no associated urinary symptoms. On physical examination, the swelling was located at the lateral surface of the penile proximal shaft. It was round, firm, and nontender and the penile skin overlying the lesion was intact and mobile. A scrotal ultrasonography to rule out any scrotal disorder showed a 5 cm×3 cm×5 cm heterogeneous echoic extratesticular mass with an internal linear hypoechoic lesion with no communication with the spermatic cord (). Excision of the mass was performed under spinal anesthesia. After incision of the skin, we performed meticulous dissection around the mass. The capsule of the mass was preserved and enucleated from the surrounding tissues (). Histologic findings showed the mass to be a cyst lined by stratified squamous epithelium (). There were no adnexal structures of skin or mesenchymal structures. The final diagnosis was a penile epidermal cyst.