A CASE OF ENDOBRONCHIAL LESION DUE TO INFECTION WITH MYCOBACTERIUM INTRACELLULARE

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  • 気管支病変を伴った非結核性抗酸菌症の１例
  • ショウレイ ホウコク キカンシ ビョウヘン オ トモナッタ ヒケッカクセイ コウサンキンショウ ノ 1レイ

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Abstract

A 53-year-old man was hospitalized in April 2001 because of left cervical lymphadenopathy and a mass shadow in the left lingular segment. Bronchoscopy revealed an elevated lesion in the left main bronchus, but a biopsy showed no specific findings. A left cervical lymph node biopsy revealed lymphoid hyperplasia only and no malignancy. After the patient was discharged, bronchial irrigation solution from the left lingular segment was found to be positive for Mycobacterium intracellulare. In July 2001 the shadow in the left lingular segment had worsened, and bronchoscopy was performed again. This revealed ulceration in the left main bronchus and edematous narrowing of the bronchial lumen at the opening of the lingular segment. A granulated lesion accompained by severe inflammation was seen in a biopsied specimen taken from the same site. Bronchial lesion induced by an acid-fast-stain positive nontuberculosis mycobacteria was noted. Treatment with rifampicin (RFP), clarithromycin (CAM), ethambutol (EB), and streptomycin (SM) was started, but a rash most likely caused by RFP developed, and RFP was replaced by ciprofloxacin (CPFX). The treatment was continued and symptoms improved. Since non-tuberculous mycobacteriosis accompanied with bronchial lesions is rare, a case report was made.

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