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Case Reports
. 2007 Dec;26(12):937-40.
doi: 10.1007/s10096-007-0390-5.

Mediastinal mass mimicking a tumor in a patient with bladder cancer after Bacillus Calmette-Guerin treatment

A Somoskovi  1 , C Carlyn, J Dormandy, M Salfinger
Affiliations
Case Reports

Mediastinal mass mimicking a tumor in a patient with bladder cancer after Bacillus Calmette-Guerin treatment

A Somoskovi et al. Eur J Clin Microbiol Infect Dis. 2007 Dec.

Abstract

We describe the case of a 78-year-old male with bladder cancer who developed a mediastinal mass after intravesical immunotherapy with live Mycobacterium bovis BCG. The clinical diagnosis was mediastinal tumor suggestive for lymphoma. However, cultures of the biopsy specimens grew an acid-fast organism, which was identified as M. bovis BCG. To the best of our knowledge, this is the first reported case in which a post-instillation BCG infection induced a mediastinal mass that mimicked a tumor in a patient with bladder cancer.

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