Abstract
Opportunistic infections of the central nervous system (CNS) with bacteria, parasites,
fungi or viruses due to iatrogenic immunosuppression are of immense importance because
of rising numbers of organ transplantations and immunomodulating treatments. Besides
transplantation medicine, the most frequently involved medical subspecialties are
dermatology (interferons, rituximab, fingolimod, among others), hematology/oncology
(rituximab, among others), neurology (beta-interferon, glatiramer acetate, natalizumab,
rituximab, teriflunomide, fingolimod, alemtuzumab, daclizumab, among others) and rheumatology
(rituximab).
In Europe, typical infections affecting the immunocompromised host are due to herpes
viruses and, especially in immunomodulated patients, JC virus (JCV); frequently occurring
fungi are Aspergillus fumigatus, Candida albicans and Cryptococcus neoformans. An
important parasite is Toxoplasma gondii (TG). Typical bacterial infections of the
immunocompromised patient are caused by Nocardia asteroides, Listeria monocytogenes
and Mycobacterium tuberculosis.Modern diagnostic and therapeutic procedures will be
described.
Key words
Opportunistic infections - central nervous system (CNS) - iatrogenic immunosuppression
and immunomodulation - typical infectious bodies