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[Isolated pulmonary choriocarcinoma].

A Amar1, J de Thore, J M Vernejoux

  • 1Service de Chirurgie thoracique et générale, Hôpital P. Zobda Quitman, Fort-de-France.

Revue De Pneumologie Clinique
|January 1, 1992
PubMed
Summary

This case study presents a rare instance of isolated pulmonary choriocarcinoma in a young woman, diagnosed via elevated beta-human chorionic gonadotropin (beta-hCG) levels and lung imaging. Surgical removal successfully treated the tumor and normalized beta-hCG, highlighting a unique presentation of gestational trophoblastic disease.

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Area of Science:

  • Oncology
  • Pulmonology
  • Reproductive Endocrinology

Background:

  • Choriocarcinoma is a rare malignancy typically associated with pregnancy.
  • Pulmonary involvement in choriocarcinoma is usually metastatic from a uterine primary.
  • Isolated pulmonary choriocarcinoma without a discernible primary gynecological source is exceptionally rare.

Observation:

  • A young woman presented with a right lung base tumor and hematoma, exhibiting tumoral syndrome.
  • Diagnostic workup revealed no gynecological history or primary tumor.
  • Computed tomography (CT) confirmed a solitary lung mass, and high serum beta-human chorionic gonadotropin (beta-hCG) levels (3,300 ng/ml) were detected in the absence of pregnancy.

Findings:

  • Surgical resection of the lung tumor confirmed the diagnosis of isolated pulmonary choriocarcinoma.

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  • Post-operative beta-hCG levels significantly decreased to 7 ng/ml, indicating successful treatment.
  • The case highlights the diagnostic challenges and unique presentation of non-gestational choriocarcinoma.

    • Implications:

    • This case contributes to the understanding of rare pulmonary malignancies.
    • It underscores the importance of considering gestational trophoblastic disease markers in unexplained tumors, even without a pregnancy history.
    • Further research into the etiopathogenesis and prognostic factors of isolated pulmonary choriocarcinoma is warranted.