Difference between revisions of "IPLab:Lab 9:Actinomycosis"

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(Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab9Actinomycosis1.jpg|This is a low-power photomicrograph of the retroperitoneal abscess. At this magnification, ...")
 
(Clinical Summary)
 
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== Clinical Summary ==
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This 18-year-old black female felt well until one year before death, when she developed a persistent, progressive skin rash and weight loss. One month before death, draining abscesses appeared in the perirectal region. Biopsy showed actinomycosis. Despite treatment, the patient died.
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Autopsy revealed a large abscess around the cecum which had ruptured. The perirectal abscesses had originated from extensions of this pericecal abscess.
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== Images ==
 
== Images ==
 
<gallery heights="250px" widths="250px">
 
<gallery heights="250px" widths="250px">
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File:IPLab9Actinomycosis5.jpg|This is a high-power photomicrograph of an actinomycotic colony. The filamentous nature (arrows) of the actinomyces organisms is more easily appreciated at this power.  
 
File:IPLab9Actinomycosis5.jpg|This is a high-power photomicrograph of an actinomycotic colony. The filamentous nature (arrows) of the actinomyces organisms is more easily appreciated at this power.  
 
</gallery>
 
</gallery>
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== Virtual Microscopy ==
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<peir-vm>IPLab9Actinomycosis</peir-vm>
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== Study Questions ==
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* <spoiler text="These organisms are ubiquitous in the environment but they seldom cause disease. Why?">Actinomyces requires an anaerobic environment deep within tissue to flourish. As a non-invasive bacterium, the Actinomyces organisms must be introduced into these deep tissues before causing harm.</spoiler>
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== Additional Resources ==
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=== Reference ===
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* [http://emedicine.medscape.com/article/211587-overview eMedicine Medical Library: Actinomycosis]
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* [http://emedicine.medscape.com/article/960759-overview eMedicine Medical Library: Pediatric Actinomycosis]
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* [http://www.merckmanuals.com/professional/infectious_diseases/anaerobic_bacteria/actinomycosis.html Merck Manual: Actinomycosis]
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=== Journal Articles ===
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* Yildiz O, Doganay M.  [http://www.ncbi.nlm.nih.gov/pubmed/16582679 Actinomycoses and Nocardia pulmonary infections].  ''Curr Opin Pulm Med'' 2006 May;12(3):228-34.
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=== Images ===
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* [{{SERVER}}/library/index.php?/tags/2154-actinomycosis PEIR Digital Library: Actinomycosis Images]
  
 
{{IPLab 9}}
 
{{IPLab 9}}
  
 
[[Category: IPLab:Lab 9]]
 
[[Category: IPLab:Lab 9]]

Latest revision as of 21:45, 9 July 2020

Clinical Summary[edit]

This 18-year-old black female felt well until one year before death, when she developed a persistent, progressive skin rash and weight loss. One month before death, draining abscesses appeared in the perirectal region. Biopsy showed actinomycosis. Despite treatment, the patient died.

Autopsy revealed a large abscess around the cecum which had ruptured. The perirectal abscesses had originated from extensions of this pericecal abscess.

Images[edit]

Virtual Microscopy[edit]

Study Questions[edit]


Additional Resources[edit]

Reference[edit]

Journal Articles[edit]

Images[edit]

An abscess is a collection of pus (white blood cells) within a cavity formed by disintegrated tissue.

An abscess is a collection of pus (white blood cells) within a cavity formed by disintegrated tissue.