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Pulmonary trophoblastic deportation. Cytologic aspects.

O F Coelho, V Valeri

    Acta Cytologica
    |March 1, 1977
    PubMed
    Summary

    Syncytial trophoblastic cells are rarely found in the sputum of healthy pregnant women. Their absence may be due to degeneration in pulmonary capillaries or collection methods, suggesting further study in abnormal pregnancy conditions.

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    Area of Science:

    • Obstetrics and Gynecology
    • Pulmonary Medicine
    • Cell Biology

    Background:

    • Pulmonary trophoblastic deportation involves the presence of placental cells in the lungs.
    • Detecting syncytial trophoblastic cells in sputum is a diagnostic challenge.
    • Previous studies have explored the presence of these cells in maternal circulation and lungs.

    Purpose of the Study:

    • To investigate the presence and morphology of syncytial trophoblastic cells in the sputum of pregnant, parturient, and puerperal patients.
    • To identify factors contributing to the absence of these cells in sputum samples.
    • To establish optimal conditions for detecting pulmonary trophoblastic deportation.

    Main Methods:

    • Analysis of 180 sputum specimens from 90 patients using Papanicolaou and Shorr staining techniques.
    • Morphological study of isolated syncytial trophoblastic cells from placental imprints.
    • Comparison of isolated syncytial trophoblastic cells with bone marrow megakaryocytes.

    Main Results:

    • Syncytial trophoblastic cells were infrequently detected in the sputum of the studied cohort.
    • Possible reasons for absence include normal patient status, cell degeneration in pulmonary capillaries, or suboptimal specimen collection.
    • Morphological similarities were noted between syncytial trophoblastic cells and megakaryocytes.

    Conclusions:

    • The absence of syncytial trophoblastic cells in normal pregnancy sputum is likely multifactorial.
    • Further investigation is warranted under conditions of "placental commotion" (e.g., eclampsia, cesarean section).
    • Standard sputum collection methods may not be sensitive enough for detecting pulmonary trophoblastic deportation.

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