system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 40-year-old man has a chronic cough with fever for several months.  The chest radiograph reveals a  diffuse reticulonodular pattern.  Microscopically on transbronchial biopsy, there are focal areas of inflammation containing epithelioid cell granuloma, Langhans giant cells,  and lymphocytes. These findings are typical for which of the following type of hypersensitivity immunologic responses?
assistant
The correct answer is  Presence of epitheloid cell granuloma, langhans giant cells and lymphocytes is characteristic of chronic granulomatous inflammation, which is associated with type IV hypersensitivity reaction.