tailieunhanh - báo cáo khoa học: "Yolk sac tumor in a patient with transverse testicular ectopia"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Yolk sac tumor in a patient with transverse testicular ectopia | Zhu et al. World Journal of Surgical Oncology 2011 9 91 http content 9 1 91 WORLD JOURNAL OF SURGICAL ONCOLOGY CASE REPORT Open Access Yolk sac tumor in a patient with transverse testicular ectopia Yi-Ping Zhu1 2 Shi-Lin Zhang1 2 Ding-Wei Ye1 2 Guo-hai Shi1 2 and Wen-jun Xiao1 2 Abstract Transverse testicular ectopia TTE is a rare anomaly in which both testes descend through a single inguinal canal. We report a case of yolk sac tumor in the ectopic testis of a patient with TTE. A 24-year-old man presented to our hospital with a left inguinal-mass right cryptorchidism and elevated alpha-fetoprotein AFP . A left herniotomy 3 years earlier demonstrated both testes in the left scrotum one above another positionally. Four months ago a left scrotal mass appeared and radical orchiectomy of both testes revealed testicular yolk sac tumor of the ectopic testis. An enlarging left inguinal-mass appeared 2 months ago and he was referred to our hospital. Laboratory data showed an elevation of AFP ng ml and a 46 XY karyotype. He underwent bilateral retroperitoneal lymph node dissection and simultaneous left inguinal mass dissection. Histopathologic examination revealed a diagnosis of recurrent yolk sac tumor in the left inguinal mass. The retroperitoneal lymph node was not enlarged and on histopathology was not involved. The patient has now been followed up for 8 months without evidence of biochemical or radiological recurrence. Background Transverse testicular ectopia TTE also named crossed testicular ectopia is a rare anomaly in which both testes descend through a single inguinal canal while the opposite inguinal canal and hemiscrotum are empty. More than 100 cases of TTE have been reported since Von Cenhos-sek described the first case in 1886 1-3 . As with undescended testis the ectopic gonads are at increased risk of malignant transformation 4 . We report a case of yolk sac tumor in the ectopic testis of a patient with TTE. Case Presentation A 24-year-old .

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