Infections opportunistic B99.x

Author: Prof. Dr. med. Peter Altmeyer

All authors of this article

Last updated on: 29.10.2020

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Synonym(s)

atypical infections; opportunistic infections

Definition
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Infectious diseases caused by pathogens against which there is natural immunity when the immune system is functioning normally.

Etiopathogenesis
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High-dose or long-term therapy with glucocorticoids or immunosuppressive, cytotoxic therapy
Malignancies: tumours originating from cells closely related to cells of the immune system: Hodgkin's disease, non-Hodgkin's lymphomas, multiple myeloma, etc.
Acquired or congenital immunodeficiency diseases:

HIV infection
Acquired immunodeficiencies (see below immunodeficiencies; see below organ transplants, skin changes)
Congenital immunodeficiency syndromes (see below immunodeficiencies, T-cellular, primary; see below immunodeficiency, variable, primary).

Therapy
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According to the respective underlying disease, see Table 1.

Tables
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Common opportunistic infections of the skin

	Pathogen	Clinic
Bacteria	Staphylococci, streptococci, Pseudomonas aeruginosa	Boils, abscesses, ecthyma, impetigo
	Mycobacterium kansasii, M. avium intracellular	atypical mycobacterioses
	mycobacterium tuberculosis	Tuberculosis cutis
	Bartonella henselae or quintana	bacillary angiomatosis
Viruses	herpes simplex virus	Herpes simplex recidivans (+generalisatus)
	Varicella zoster virus	Zoster over several dermatomes, zoster generalisatus
	Epstein-Barr virus	Hair leukoplakia, oral
	Cytomegalovirus	cutaneous ulcerations
	human papillomaviruses	Verrucae vulgaris, Condylomata acuminata
	poxvirus mollusci	contagious mollusc
Mushrooms	Candida spp.	oral thrush, candidaintertrigo, disseminated candidosis
	oval pityrosporon	seborrheic eczema (?), pityriasis versicolor, pityrosporon folliculitis
	cryptococcus neoformans	cutaneous cryptococcosis
	Aspergillus fumigatus	cutaneous aspergillosis, aspergillomas
	immitis coccidioidis	Coccidioidomycosis
	histoplasm capsulatum	cutaneous histoplasmosis

Incoming links (5)

Aids; CVID; Immunodeficient t-cell primary; Infectious diseases of the skin; Organ transplants, skin changes;

Outgoing links (7)

Aids; CVID; Glucocorticosteroids; Immunodeficiencies (overview); Immunodeficient t-cell primary; Immunosuppressive drugs; Organ transplants, skin changes;

Disclaimer

Please ask your physician for a reliable diagnosis. This website is only meant as a reference.

Authors

Last updated on: 29.10.2020

Author: Prof. Dr. med. Peter Altmeyer

Articlecontent

Definition
Etiopathogenesis
Therapy
Tables
References
Authors