A 51-year-old man presented with progressively worsening lung infiltrates and respiratory failure. Extensive investigations including bronchoscopy with bronchoalveolar lavage and conventional transbronchial forceps biopsies failed to establish the diagnosis. After transfer to our institution, he underwent repeat bronchoscopy with transbronchial cryobiopsy, which provided large, high-quality biopsy specimens establishing the diagnosis of parenchymal diffuse large B-cell lymphoma.
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Schiavo et al. (2015) studied this question.
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