Actinomycosis overview: Difference between revisions
Aditya Ganti (talk | contribs) |
Aditya Ganti (talk | contribs) (→Causes) |
||
| Line 19: | Line 19: | ||
Actinomycosis is a chronic pyogenic bacterial infection caused by Actinomyces species. Infection most frequently follows dental work, trauma, surgery, or other medical conditions. When there is break in the mucosa, anywhere from the mouth to the rectum they reach tissues and cause damage. Incubation period of Actinomycosis varies from one to four weeks. But occasionally, it may be as long as several months. Actinomycosis elicits both humoral and cell-mediated immune responses.<ref name="pmid16116835">{{cite journal |vauthors=Volante M, Contucci AM, Fantoni M, Ricci R, Galli J |title=Cervicofacial actinomycosis: still a difficult differential diagnosis |journal=Acta Otorhinolaryngol Ital |volume=25 |issue=2 |pages=116–9 |year=2005 |pmid=16116835 |pmc=2639881 |doi= |url=}}</ref><ref name="pmid17561082">{{cite journal |vauthors=Sharkawy AA |title=Cervicofacial actinomycosis and mandibular osteomyelitis |journal=Infect. Dis. Clin. North Am. |volume=21 |issue=2 |pages=543–56, viii |year=2007 |pmid=17561082 |doi=10.1016/j.idc.2007.03.007 |url=}}</ref><ref name="Peipert2004">{{cite journal|last1=Peipert|first1=Jeffrey F.|title=Actinomyces: Normal Flora or Pathogen?|journal=Obstetrics & Gynecology|volume=104|issue=Supplement|year=2004|pages=1132–1133|issn=0029-7844|doi=10.1097/01.AOG.0000145267.59208.e7}}</ref><ref name="pmid28202870">{{cite journal |vauthors=Higashi Y, Nakamura S, Ashizawa N, Oshima K, Tanaka A, Miyazaki T, Izumikawa K, Yanagihara K, Yamamoto Y, Miyazaki Y, Mukae H, Kohno S |title=Pulmonary Actinomycosis Mimicking Pulmonary Aspergilloma and a Brief Review of the Literature |journal=Intern. Med. |volume=56 |issue=4 |pages=449–453 |year=2017 |pmid=28202870 |doi=10.2169/internalmedicine.56.7620 |url=}}</ref><ref name="pmid1612438">{{cite journal |vauthors=Schaal KP, Lee HJ |title=Actinomycete infections in humans--a review |journal=Gene |volume=115 |issue=1-2 |pages=201–11 |year=1992 |pmid=1612438 |doi= |url=}}</ref><ref name="Brown1973">{{cite journal|last1=Brown|first1=James R.|title=Human actinomycosisA study of 181 subjects|journal=Human Pathology|volume=4|issue=3|year=1973|pages=319–330|issn=00468177|doi=10.1016/S0046-8177(73)80097-8}}</ref> | Actinomycosis is a chronic pyogenic bacterial infection caused by Actinomyces species. Infection most frequently follows dental work, trauma, surgery, or other medical conditions. When there is break in the mucosa, anywhere from the mouth to the rectum they reach tissues and cause damage. Incubation period of Actinomycosis varies from one to four weeks. But occasionally, it may be as long as several months. Actinomycosis elicits both humoral and cell-mediated immune responses.<ref name="pmid16116835">{{cite journal |vauthors=Volante M, Contucci AM, Fantoni M, Ricci R, Galli J |title=Cervicofacial actinomycosis: still a difficult differential diagnosis |journal=Acta Otorhinolaryngol Ital |volume=25 |issue=2 |pages=116–9 |year=2005 |pmid=16116835 |pmc=2639881 |doi= |url=}}</ref><ref name="pmid17561082">{{cite journal |vauthors=Sharkawy AA |title=Cervicofacial actinomycosis and mandibular osteomyelitis |journal=Infect. Dis. Clin. North Am. |volume=21 |issue=2 |pages=543–56, viii |year=2007 |pmid=17561082 |doi=10.1016/j.idc.2007.03.007 |url=}}</ref><ref name="Peipert2004">{{cite journal|last1=Peipert|first1=Jeffrey F.|title=Actinomyces: Normal Flora or Pathogen?|journal=Obstetrics & Gynecology|volume=104|issue=Supplement|year=2004|pages=1132–1133|issn=0029-7844|doi=10.1097/01.AOG.0000145267.59208.e7}}</ref><ref name="pmid28202870">{{cite journal |vauthors=Higashi Y, Nakamura S, Ashizawa N, Oshima K, Tanaka A, Miyazaki T, Izumikawa K, Yanagihara K, Yamamoto Y, Miyazaki Y, Mukae H, Kohno S |title=Pulmonary Actinomycosis Mimicking Pulmonary Aspergilloma and a Brief Review of the Literature |journal=Intern. Med. |volume=56 |issue=4 |pages=449–453 |year=2017 |pmid=28202870 |doi=10.2169/internalmedicine.56.7620 |url=}}</ref><ref name="pmid1612438">{{cite journal |vauthors=Schaal KP, Lee HJ |title=Actinomycete infections in humans--a review |journal=Gene |volume=115 |issue=1-2 |pages=201–11 |year=1992 |pmid=1612438 |doi= |url=}}</ref><ref name="Brown1973">{{cite journal|last1=Brown|first1=James R.|title=Human actinomycosisA study of 181 subjects|journal=Human Pathology|volume=4|issue=3|year=1973|pages=319–330|issn=00468177|doi=10.1016/S0046-8177(73)80097-8}}</ref> | ||
==Causes== | ==Causes== | ||
'''''Actinomyces''''' is a [[genus]] of [[Gram-positive]] [[bacterium|bacteria]]. Some species are [[Anaerobic organism|anaerobic]], while others are [[Facultative anaerobic organism|facultatively anaerobic]] . ''Actinomyces'' species do not form [[spore]]s, and, while individual bacteria are rod-shaped, morphologically ''Actinomyces'' colonies form [[fungus]]-like branched networks of [[hypha|hyphae]]. Many ''Actinomyces'' species are opportunistic pathogens of humans and other mammals, particularly in the [[oral cavity]]. In rare cases, these bacteria can cause [[actinomycosis]], a disease characterized by the formation of [[abscess]]es in the mouth, lungs, or the [[gastrointestinal tract]].<ref name=Baron>{{cite book | author = Bowden GHW | title = Actinomycosis ''in:'' Baron's Medical Microbiology ''(Baron S ''et al'', eds.)| edition = 4th ed. | publisher = Univ of Texas Medical Branch | year = 1996 | id = [http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mmed.section.1883 (via NCBI Bookshelf)] ISBN 0-9631172-1-1 }}</ref><ref name=Holt_1994>{{cite book | author = Holt JG (editor) | title = Bergey's Manual of Determinative Bacteriology | edition = 9th ed. | publisher = Williams & Wilkins | year = 1994 | id = ISBN 0-683-00603-7 }}</ref><ref name=Brock_2005>{{cite book | author = Madigan M; Martinko J (editors). | title = Brock Biology of Microorganisms | edition = 11th ed. | publisher = Prentice Hall | year = 2005 | id = ISBN 0-13-144329-1 }}</ref> | '''''Actinomyces''''' is a [[genus]] of [[Gram-positive]] [[bacterium|bacteria]]. Some species are [[Anaerobic organism|anaerobic]], while others are [[Facultative anaerobic organism|facultatively anaerobic]] . ''Actinomyces'' species do not form [[spore]]s, and, while individual bacteria are rod-shaped, morphologically ''Actinomyces'' colonies form [[fungus]]-like branched networks of [[hypha|hyphae]]. Many ''Actinomyces'' species are opportunistic pathogens of humans and other mammals, particularly in the [[oral cavity]]. In rare cases, these bacteria can cause [[actinomycosis]], a disease characterized by the formation of [[abscess]]es in the mouth, lungs, or the [[gastrointestinal tract]].<ref name=Baron>{{cite book | author = Bowden GHW | title = Actinomycosis ''in:'' Baron's Medical Microbiology ''(Baron S ''et al'', eds.)| edition = 4th ed. | publisher = Univ of Texas Medical Branch | year = 1996 | id = [http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mmed.section.1883 (via NCBI Bookshelf)] ISBN 0-9631172-1-1 }}</ref><ref name=Holt_1994>{{cite book | author = Holt JG (editor) | title = Bergey's Manual of Determinative Bacteriology | edition = 9th ed. | publisher = Williams & Wilkins | year = 1994 | id = ISBN 0-683-00603-7 }}</ref><ref name=Brock_2005>{{cite book | author = Madigan M; Martinko J (editors). | title = Brock Biology of Microorganisms | edition = 11th ed. | publisher = Prentice Hall | year = 2005 | id = ISBN 0-13-144329-1 }}</ref>io | ||
==Differentiating Actinomycosis from other diseases== | |||
The differential diagnosis of actinomycosis consists of [[blastomycosis]], [[brain abscess]], [[colon cancer]], [[crohn disease]], [[diverticulitis]], [[liver abscess]], [[lung abscess]], [[lymphoma]], [[nocardiosis]], [[pelvic inflammatory disease]], [[pneumonia]], [[tuberculosis]] and [[uterine cancer]]. | |||
==References== | ==References== | ||
Revision as of 15:50, 22 March 2017
|
Actinomycosis Microchapters |
|
Diagnosis |
|---|
|
Treatment |
|
Actinomycosis overview On the Web |
|
American Roentgen Ray Society Images of Actinomycosis overview |
|
Risk calculators and risk factors for Actinomycosis overview |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Actinomycosis is a rare infectious bacterial disease of humans generally caused by Actinomyces israelii, A. gerencseriae and Propionibacterium propionicus, though the condition is likely to be polymicrobial.Characterized by the formation of painful abscesses in the mouth, lungs, or digestive organs, actinomycosis abscesses grow larger as the disease progresses, often over a period of months. In severe cases, the abscesses may penetrate the surrounding bone and muscle to the skin, where they break open and leak large amounts of pus. Actinomycosis occurs in cattle and other animals as a disease called lumpy jaw. This name refers to the large abscesses that grow on the head and neck of the infected animal.
Historical Perspective
Acitnomycosis was first identified in 1877 in cattle by pathologist Otto Bollinger. Later in the year, James Israel discovered it in humans and classified it under fungal origin. In 1939, Bergey classified to be bacteria.
Classification
Actinomycosis can be classified based on the anatomical site involved into[1]
- Orocervicofacial actinomycosis
- Thoracic actinomycosis
- Abdominopelvic actinomycosis
- central nervous system actinomycosis
- Musculoskeletal actinomycosis
- Disseminated actinomycosis
Pathophysiology
Actinomycosis is a chronic pyogenic bacterial infection caused by Actinomyces species. Infection most frequently follows dental work, trauma, surgery, or other medical conditions. When there is break in the mucosa, anywhere from the mouth to the rectum they reach tissues and cause damage. Incubation period of Actinomycosis varies from one to four weeks. But occasionally, it may be as long as several months. Actinomycosis elicits both humoral and cell-mediated immune responses.[2][3][4][5][6][7]
Causes
Actinomyces is a genus of Gram-positive bacteria. Some species are anaerobic, while others are facultatively anaerobic . Actinomyces species do not form spores, and, while individual bacteria are rod-shaped, morphologically Actinomyces colonies form fungus-like branched networks of hyphae. Many Actinomyces species are opportunistic pathogens of humans and other mammals, particularly in the oral cavity. In rare cases, these bacteria can cause actinomycosis, a disease characterized by the formation of abscesses in the mouth, lungs, or the gastrointestinal tract.[8][9][10]io
Differentiating Actinomycosis from other diseases
The differential diagnosis of actinomycosis consists of blastomycosis, brain abscess, colon cancer, crohn disease, diverticulitis, liver abscess, lung abscess, lymphoma, nocardiosis, pelvic inflammatory disease, pneumonia, tuberculosis and uterine cancer.
References
- ↑ Valour F, Sénéchal A, Dupieux C, Karsenty J, Lustig S, Breton P, Gleizal A, Boussel L, Laurent F, Braun E, Chidiac C, Ader F, Ferry T (2014). "Actinomycosis: etiology, clinical features, diagnosis, treatment, and management". Infect Drug Resist. 7: 183–97. doi:10.2147/IDR.S39601. PMC 4094581. PMID 25045274.
- ↑ Volante M, Contucci AM, Fantoni M, Ricci R, Galli J (2005). "Cervicofacial actinomycosis: still a difficult differential diagnosis". Acta Otorhinolaryngol Ital. 25 (2): 116–9. PMC 2639881. PMID 16116835.
- ↑ Sharkawy AA (2007). "Cervicofacial actinomycosis and mandibular osteomyelitis". Infect. Dis. Clin. North Am. 21 (2): 543–56, viii. doi:10.1016/j.idc.2007.03.007. PMID 17561082.
- ↑ Peipert, Jeffrey F. (2004). "Actinomyces: Normal Flora or Pathogen?". Obstetrics & Gynecology. 104 (Supplement): 1132–1133. doi:10.1097/01.AOG.0000145267.59208.e7. ISSN 0029-7844.
- ↑ Higashi Y, Nakamura S, Ashizawa N, Oshima K, Tanaka A, Miyazaki T, Izumikawa K, Yanagihara K, Yamamoto Y, Miyazaki Y, Mukae H, Kohno S (2017). "Pulmonary Actinomycosis Mimicking Pulmonary Aspergilloma and a Brief Review of the Literature". Intern. Med. 56 (4): 449–453. doi:10.2169/internalmedicine.56.7620. PMID 28202870.
- ↑ Schaal KP, Lee HJ (1992). "Actinomycete infections in humans--a review". Gene. 115 (1–2): 201–11. PMID 1612438.
- ↑ Brown, James R. (1973). "Human actinomycosisA study of 181 subjects". Human Pathology. 4 (3): 319–330. doi:10.1016/S0046-8177(73)80097-8. ISSN 0046-8177.
- ↑ Bowden GHW (1996). Actinomycosis in: Baron's Medical Microbiology (Baron S et al, eds.) (4th ed. ed.). Univ of Texas Medical Branch. (via NCBI Bookshelf) ISBN 0-9631172-1-1.
- ↑ Holt JG (editor) (1994). Bergey's Manual of Determinative Bacteriology (9th ed. ed.). Williams & Wilkins. ISBN 0-683-00603-7.
- ↑ Madigan M; Martinko J (editors). (2005). Brock Biology of Microorganisms (11th ed. ed.). Prentice Hall. ISBN 0-13-144329-1.
de:Aktinomykose gl:Actinomicose hr:Aktinomikoza nl:Actinomycose sr:Актиномикоза fi:Aktinomykoosi uk:Актиномікоз