ArticleBMC infectious diseases2025
Diagnostic dilemma of a new endobronchial lesion in a patient on anti-tuberculosis regimen: unveiling tuberculosis immune reconstitution inflammatory syndrome.
Article in BMC infectious diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
A 76-year-old gentleman with chronic plaque psoriasis was found to have a right lower lobe mass with bilateral pulmonary nodules, extensive lymphadenopathy, splenic hypodensities and diffuse peritoneal thickening on the computed tomography (CT) scan 5 months after initiation of adalimumab. Biopsies of the RLL mass and supraclavicular lymph node showed granulomatous inflammation and cultures were positive for Mycobacterium tuberculosis (MTB). Adalimumab was stopped and he was started on TB treatment. He remained well and asymptomatic but was noted to have 3 kg weight loss. Interval CT scan 3 months later showed enlarging mediastinal lymph nodes confluent with a new left lower lobe endobronchial mass. Sputum, bronchoalveolar lavage and bronchial biopsy samples were negative for evidence of active TB. Histology showed granulation tissue with both acute and chronic inflammation. Diagnostic impression was asymptomatic TB immune reconstitution inflammatory syndrome (IRIS), and he was maintained on the existing TB treatment. Interval CT 1 month later showed resolution of the endobronchial mass. In patients without human-immunodeficiency virus (HIV) infection, IRIS after initiation of TB treatment is rare. Without standardised diagnostic criteria, TB IRIS can be challenging to diagnose especially in absence of clinical symptoms. Patients with TB IRIS can have serious complications but may also be asymptomatic with only radiological abnormalities. Hence a high clinical suspicion is needed for the diagnosis, especially in patients presenting initially with disseminated disease or with underlying immune dysregulation such as in this patient who had been on anti- TNF-α treatment. Exclusion of alternative diagnoses is important. Our case also highlights the importance of a personalised approach (with combination tests) especially among immunosuppressed patients with prior TB disease.
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