Ear Nose Throat J. 2002 Aug;81(8):506.
FIRST PARAGRAPH: Rhinoscleroma (‘hard nose’) is caused by Klebsiella rhinoscleromatis, a gram-negative encapsulated bacterium of low infectivity. The disease is uncommon in the United States; most cases are found in the Middle East (especially Egypt), in parts of Latin America, and in Eastern Europe. The disease process usually involves the nasal cavity and the nasopharynx, but it can also involve the larynx, trachea, bronchi, middle ear, and orbit.
PubMed ID: 12199166
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