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GAZZETTA MEDICA ITALIANA ARCHIVIO PER LE SCIENZE MEDICHE

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Gazzetta Medica Italiana Archivio per le Scienze Mediche 2003 June;162(2-3):67-9

Copyright © 2003 EDIZIONI MINERVA MEDICA

language: Italian

Pneumonia due to chlamydia pneumoniae with anomalous antibody’s answer

Bertuccio S. N. 1, Pellicanò S. 2, Calzone R. 1, Bertuccio A. 1, Del Giudice A. C., Rombola F. 1, Rizza R. 1

1 Divisione di Malattie Infettive, Ospedale Civile “G. Jazzolino”, ASL n. 8, Vibo Valentia; 2 Divisione di Malattie Infettive, Ospedale “S. Giovanni di Dio”, ASL n. 5, Crotone


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Chla­myd­ia pneu­mon­i­ae (CP) is a com­mon res­pir­a­to­ry ­tract patho­gen. In Swe­den, the major­ity of ­adults ­have ser­o­log­i­cal evi­dence of pre­vi­ous expo­sure. ­Most infec­tions are prob­ably asymp­to­mat­ic or sub­clin­i­cal. The ­most com­mon clin­i­cal man­i­fes­ta­tions of pneu­mo­nia due to CP are ­fever, ­cough, ­chest ­pain and short­ness of ­breath. Cas­es of CP infec­tions in ­patients ­with non spe­cif­ic inter­sti­tial pneu­mo­nia (­NSIP), pit­y­ri­a­sis ­rosea and ery­the­ma nodo­sum are recent­ly ­described. It was hypoth­e­sized ­that recur­rent infec­tion ­caused by CP may ­play a ­role in the path­o­gen­e­sis of ­NSIP and in ath­e­ros­cle­rot­ic vas­cu­lar ­lesions. The ­acute ­form is nor­mal­ly ­most fre­quent in eld­er­ly ­patients. The IgM and IgG ­research may ­help to dif­fer­en­tiate the ­acute ­from the pre­vi­ous infec­tion and the pri­mary infec­tion ­from rein­fec­tion. In a ­study of 111 ­patients, IgG1 sub­class - spe­cif­ic anti­bod­ies to CP ­were ­found in all sub­jects ­enrolled. We ­describe a ­case of a ­young man, 40 ­years old, with­out oth­er pathol­o­gies, immu­nod­e­pres­sion and appar­ent caus­es of inter­fer­ence as reuma­thoid fac­tor, dia­lyt­ic treat­ment and ­drugs; IgG ­present an anom­a­lous behav­iour ­because rath­er ­than ­increase, as usu­al ­they ­were pre­cious­ly ­reduced. ­This behav­iour, at ­present rare­ly ­described in the lit­er­a­ture, usu­al­ly is asso­ciat­ed ­with ery­the­ma nodo­sum and pit­y­ri­a­sis ­rosea.

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