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  • Title: Surgery in infants and children with testicular and paratesticular tumours: a single centre experience over a 25-year-period.
    Author: Tröbs RB, Krauss M, Geyer C, Tannapfel A, Körholz D, Hirsch W.
    Journal: Klin Padiatr; 2007; 219(3):146-51. PubMed ID: 17525908.
    Abstract:
    Testicular and even more paratesticular tumours in children are rare. The aim of the study is to characterise the spectrum of these lesions with focus on the feasibility and effectiveness of testis sparing surgery. Twenty-four boys treated between 1980 and 2004 at the University Leipzig Medical Centre were evaluated. At presentation patients were between 5 months and 18 years old (median 23 months). Generally a high rate of malignant or potentially malignant tumours was observed. The majority of these tumours occurred in the first three years of age. The spectrum of testicular tumours comprised 13 germ cell tumours (6 yolk sac tumours, 6 teratomas, 1 embryonal carcinoma) and 4 sex cord stromal tumours (2 Leydig's cell, Sertoli's cell, granulosa cell). Both Leydig's cell tumours were endocrine active. Further on, we observed 3 boys with paratesticular rhabdomyosarcoma (RMS), and three with testicular and paratesticular metastases (Wilms' tumour, neuroblastoma, leukaemia). Serum alpha1-fetoprotein (AFP) was clearly elevated in 5 of 6 yolk sac tumours but remained within normal limits concerning the other entities. Human chorionic gonadotrophin was normal in all cases tested. During the observation period high inguinal orchidectomy was the surgical standard method. Dependent on tumour histology, stage and the recommended treatment schedule postoperative chemotherapy was added. Testis sparing surgery was performed in 3 boys with primary testicular tumours (2 Leydig's cell, mature cystic teratoma). Local relapses were not observed. Systemic relapses occurred in 3 cases (2 RMS, leukaemia). During a median follow up of 5 years all patients with primary testicular tumours survived event free. Meta-analysis of the recent literature revealed that testis sparing surgery is feasible and save in prepubertal boys after exclusion of a malignant tumour. If a testis sparing approach is planned, the following criteria are essential: 1. The presence of a well defined circumscribed nodule confirmed by imaging. 2. Normal levels of serum AFP and hCG. 3. The presence of sufficient healthy testicular parenchyma. However, the high rate of malignant or potentially malignant tumours suggests that high inguinal orchidectomy should remain the surgical standard of therapy.
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