Answer: Although cell type cannot be discerned at this magnification, what types of cells are likely present in the airway lumen, and what types invade the epithelium and peribronchiolar connective tissue? The luminal cells are mostly an exudate of PMNs. The inflammatory cells in the epithelium and peribronchiolar connective tissue are mostly lymphocytes and plasma cells. The histologic diagnosis is lymphocytic bronchiolitis with purulent exudate. This inflammation with luminal suppuration corresponds to clinical chronic bronchitis/bronchiolitis with purulent sputum.

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