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Endodermal sinus tumor: a clinical and pathological correlation

M M Olsen, J G Raffensperger, F Gonzalez-Crussi

    Journal of Pediatric Surgery
    |December 1, 1982
    PubMed
    Summary
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    Endodermal sinus tumors, originating from germ cells, are highly malignant and spread to distant sites. Multimodal therapy including surgery, chemotherapy, and radiation shows promise for improving survival rates.

    Area of Science:

    • Oncology
    • Pathology
    • Developmental Biology

    Background:

    • Endodermal sinus tumors (yolk sac tumors) originate from germ cells, with potential gonadal and extragonadal occurrences.
    • These tumors are characterized by high malignancy and metastatic potential to lymph nodes, lungs, liver, and bone.
    • Alpha fetoprotein (AFP) presence supports the germ cell origin from the extraembryonic yolk sac.

    Purpose of the Study:

    • To investigate the origin, behavior, and therapeutic strategies for endodermal sinus tumors.
    • To evaluate the efficacy of multimodal treatment approaches for these rare cancers.

    Main Methods:

    • Histopathological analysis (light and electron microscopy) to determine tumor origin.
    • Clinical case review to assess treatment outcomes and survival rates.

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  • Monitoring of alpha fetoprotein (AFP) levels as a tumor marker.

    • Main Results:

    • Complete regression of metastases was observed in one child treated with vinblastine, bleomycin, and cis-platinum.
    • Nine of 13 boys with testicular endodermal sinus tumors survived following orchiectomy and lymph node excision.
    • Combined surgical excision, chemotherapy, and radiation led to survival in patients with large extragonadal tumors.

    Conclusions:

    • Endodermal sinus tumors are aggressive malignancies requiring prompt and comprehensive treatment.
    • Vigorous multimodal therapy, integrating surgery and chemotherapy, is recommended for optimal outcomes.
    • Alpha fetoprotein is a valuable biomarker for diagnosis and monitoring of endodermal sinus tumors.