Post-circumcision penile epidermal inclusion cyst in an 8-year-old: A rare late complication of neonatal surgery.

Post-circumcision penile epidermal inclusion cysts (EICs) are exceptionally rare late complications of neonatal circumcision, arising from iatrogenic implantation of squamous epithelium into subcutaneous tissue. We report an 8-year-old boy presenting with a painless penile shaft mass eight years after uneventful neonatal circumcision. Ultrasonography with color Doppler demonstrated an avascular cystic lesion without urethral or corporal communication. Complete surgical excision confirmed a benign epidermal inclusion cyst on histopathology, with no evidence of malignancy. No recurrence was observed at six-month follow-up. Clinicians should consider EICs when evaluating painless penile masses in circumcised children, regardless of the interval since surgery.