Granulomatous inflammatory reaction is caused by all of the following organisms, EXCEPT:
High-Yield Explanation
Mycoplasma pneumoniae produce acute self limited lower respiratory tract infection which mostly affects children, and young adults. pneumonia caused by Mycoplasma shows patchy consolidation of the lung. The alveoli shows interstitial process with reactive alveolar lining cells and mononuclear infiltration. It does not cause granulomatous inflammatory reaction. A granuloma is defined as a nodular lesion caused by the accumulation of mononuclear leukocytes resulting from a chronic inflammatory reaction. Mycobacteria induced tuberculosis and leprosy are examples of infectious agent induced granulomatous disease. Ref: Essentials of Rubin's Pathology edited by Emanuel Rubin, page 174.