Abstract

Background and Aim: Testicular yolk sac tumor is the most common malignant germ cell tumor in childhood. We reported a case of testicular yolk sac tumor to attract attention to testicular masses.

Case Report: The patient was a 5-month-old boy with a right testicular mass. Clinical examination revealed acute testicular enlargement and pain. Serum alpha-fetoprotein level was high. Scrotal sonography revealed a mass in the right testis. There was a demarcated, cystic and solid area measuring 0.6x2 cm area in the right testis. Doppler ultrasonography showed no blood flow. Left testis had normal dimensions There was no any paraaortic and iliac lymphadenopathy. The patient underwent right inguinal exploration and the mass was excised. Frozen-section diagnosis was reported as malign yolk sac tumor. Patient was referred to pediatric oncology department in another center for further treatment.

Conclusion: Although testicular tumors usually diagnosed in the first year of life with a typical clinical presentation characterized by a painless testicular mass that may involve an undescended or scrotal testis, it can manifest itself as an acute scrotum as seen in our case report. Treatment is based on the likely diagnosis, and enucleation, partial orchiectomy or total orchiectomy with high ligation may be considered concomitantly with histological assessment of the frozen section biopsy specimen.