© 2006 European Society for Medical Oncology
Blind antibiotic treatment targeting Chlamydia is not effective in patients with MALT lymphoma of the ocular adnexa
Departments of 1 Medicine I, Division of Oncology, 2 Opththalmology, and 3 Pathology Medical University Vienna, Vienna, Austria
* Correspondence to: Prof. M. Raderer, MD, Department of Medicine I, Division of Oncology, Medical University Vienna, Waehringer Guertel 1820, A-1090 Vienna, Austria. Tel/Fax: +43-1-40400-2296; E-mail: markus.raderer{at}meduniwien.ac.at
Background: Recent results have implicated Chlamydia, especially Chlamydia psittaci, in the development of ocular adnexal lymphoma in the large majority of patients. We present our experience with ex-juvantibus antibiotic treatment in patients diagnosed with MALT lymphoma of the ocular adnexa.
Patients and methods: A retrospective analysis identified a total of 11 patients (six female, five male) with MALT-lymphoma of the ocular adnexa who were given doxycyclin 200 mg p.o. daily over 3 weeks. Patients were tested also for autoimmune conditions, Helicobacter status and hepatitis along with assessment of MALT-lymphoma specific genetic changes.
Results: After a median follow-up of 9 months, none of the patients responded to blind antibiotic treatment with doxycyclin. Only one patient with bilateral conjunctival lymphoma related a short lasting subjective improvement, but was referred to alternative therapy due to progression and worsening symptoms after 6 months.
Conclusions: In this uncontrolled series, no effect of blind antibiotic treatment with doxycyclin could be found in our patients with MALT lymphoma of the ocular adnexa. These results are in contrast to other series and suggest a potential geographic difference in the role of Chlamydia in ocular adnexal lymphoma. Thus, antibiotic therapy without prior testing for Chlamydia should be discouraged.
Key words: antibiotic therapy, chlamydia, MALT lymphoma, ocular adnexa
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