Klebsiella
rhinoscleromatis, the causative agent of rhinoscleroma, is a Gram-negative,
facultatively intracellular, non-motile, encapsulated bacillus. The organism
has a very low infectivity necessitating a chronic exposure for infection.Central America, Africa and the Middle East are endemic, but sporadic cases can
also been encountered attributed to immigration. Prevalence is also high in
developing countries like India.
The factors responsible for this are
attributed to poor hygiene, poor access to medications and overcrowded living
conditions. Though entire respiratory mucosa can be affected, the organism has
an affinity for nasal mucosa and thus nasal cavity is the most prevalent site accounts
for 95–100% of cases. In decreasing order of involvement nasopharynx (18–43%),
larynx (15–40%), trachea (12%) and bronchi (2–7%) are the other sites.
Involvement of oral cavity and soft tissues of upper lip and philtrum are
uncommon. Read more>>>>>>>>>>>>>
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