Scleroma originally was limited in occurrence to central and southeastern Europe, being endemic in Poland, Austria and Russia. Since the World War it has been found with increasing frequency throughout Europe and the rest of the world. In recent years many cases have been observed in South America, Mexico and Central America, particularly in El Salvador and Guatemala.
A thorough survey of the American literature reveals 58 cases in the United States during the forty-five years since the first report.1 The great majority of the patients were immigrants. It is interesting to note, however, that 8 patients were native born. Although the latter group were mainly of foreign parentage, only 1 had been outside the country (table). These cases support Chamberlin's recent speculation regarding the possibility of scleroma's becoming indigenous in the United States. Furthermore, as he has pointed out, because of the increased facilities for worldwide travel and transcription,
WEISS JA. SCLEROMA (RHINOSCLEROMA): HISTOLOGIC CHANGES FOLLOWING TELERADIUM THERAPYREVIEW OF SCLEROMA IN THE UNITED STATES. Arch Otolaryngol. 1939;30(1):38–49. doi:10.1001/archotol.1939.00650060046004
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