PT - JOURNAL ARTICLE AU - Mayayo, E AU - Gomez-Aracil, V AU - Azua-Blanco, J AU - Azua-Romeo, J AU - Capilla, J AU - Mayayo, R TI - <em>Strongyloides stercolaris</em> infection mimicking a malignant tumour in a non-immunocompromised patient. Diagnosis by bronchoalveolar cytology AID - 10.1136/jcp.2004.017756 DP - 2005 Apr 01 TA - Journal of Clinical Pathology PG - 420--422 VI - 58 IP - 4 4099 - http://jcp.bmj.com/content/58/4/420.short 4100 - http://jcp.bmj.com/content/58/4/420.full SO - J Clin Pathol2005 Apr 01; 58 AB - Autoinfective strongyloidiasis is often fatal in immunosuppressed patients or in immunocomprised hosts. An interesting case of Strongyloides stercolaris hyperinfection was seen in an immunocompetent patient. This report describes a case of fatal strogyloidiasis in a 79 year old man, who had suffered gastrointestinal discomfort for years, and who presented because of respiratory illness. A chest radiograph showed an irregular mass close to the mediastinum and interstitial infiltrates, but blood eosinophilia was not observed. Cytological examination of the samples obtained from bronchial aspiration and brushing identified several filariform larvae. Thus, cytology was essential for the correct diagnosis in this patient and is a very reliable method to diagnose lung parasitosis.