Abstract
Le diagnostic des métastases endobronchiques est facilité par les techniques d’immunomarquage sur biopsies bronchiques.Chez une femme de 70 ans ayant un adénocarcinome lieberkühnien du rectum diagnostiqué 2 ans auparavant est apparu un processus tumoral endobronchique. Les examens immuno-histochimiques ont permis le diagnostic de métastases endobronchiques d’un adénocarcinome rectal.Les métastases endobronchiques sont des localisations secondaires rares. Celles liées à un adénocarcinome rectal représentent 11 à 26% des lésions secondaires endobronchiques. Après biopsie perendoscopique, les techniques d’immunomarquage aident au diagnostic différentiel entre adénocarcinome primitif et métastase endobronchique. Le pronostic est mauvais.Diagnosis of endobronchial metastases is facilitated by immunolabeling techniques on bronchial biopsy samples.Endobronchial tumors appeared in a 70-year-old woman with an adenocarcinoma of the crypts of Lieberkuhn, diagnosed two years previously. Immunohistochemical examinations made it possible to diagnose endobronchial metastases of the rectal adenocarcinoma.The endobronchial zone is a relatively rare metastatic site. Metastases associated with rectal adenocarcinoma account for 11-26% of secondary endobronchial lesions. After endoscopic biopsy, immunolabeling techniques help to differentiate between primary adenocarcinoma and endobronchial metastasis. Prognosis is poor.
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