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Pediatric_Oncology_A_Comprehensive_Guide.pdf
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180

P. Imbach

 

 

Histological grading of testicular teratoma

Grade 0: Mature tissue without mitoses

Grade 1: Some immaturity of tissue without or with limited neuroepithelium

Grade 2: Immature tissue with moderate presence of neuroepithelium

Grade 3: Prominent immature tissue and neuroepithelium

16.8.2.2 Therapy

•Radical en bloc excision with favorable prognosis in stage I

•In stages II and III as well as in adolescents after puberty: chemotherapy, then irradiation

16.8.3Testicular Embryonal Carcinoma

•Mostly in males older than 10 years of age

•Frequency is 20%

•AFP ± b-HCG frequency level usually high

•Therapy: radical surgery and chemotherapy

16.8.4Testicular Teratocarcinoma

•Frequency 13%

•Mostly in boys older than 10 years of age

•Eighty percent with stage I and with a survival rate of 75% after surgical excision alone

•In advanced stages, chemoand radiotherapy

16.8.5Testicular Seminoma (in Adults)

•Mixed tumor with germ cells and choriocarcinoma cells

•Rarely in male children and adolescents

16.9Ovarian Tumors and Subtypes

•One percent of females with neoplasia have an ovarian tumor

•Frequently in females between 10 and 14 years of age

•In decreasing frequency: mature teratoma, dysgerminoma, yolk sac tumor, immature teratoma, mixed-cellular germ cell tumor, embryonal carcinoma, gonadoblastoma

•Symptoms: abdominal pain; acute abdomen

•Diagnosis: ultrasound, CT, MRI, show cystic abdominal/retroperitoneal mass

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