39. Viral myocarditis: Difference between revisions

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(Created page with "'''Staining''': HE '''Organ''': Myocardium '''Description''': We can see many sections of myocardium. The myocardium has many focal accumulations of lymphocytes. Some foci of the myocardium contain no cells, and some have an abnormal cloudy/wavy appearance. '''Diagnosis''': Viral myocarditis '''Causes''': * Coxsackie virus '''Theory''': Two findings are characteristic for myocarditis: focal lymphocyte accumulation and focal cell necrosis. We can see two evidences...")
 
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'''Staining''': HE
[[File:Viral myocarditis overview.png|thumb|Overview. Kinda looks like a smiley face. The marked section is the best one to examine.]]'''Staining''': HE


'''Organ''': Myocardium
'''Organ''': Myocardium
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* Coxsackie virus
* Coxsackie virus


'''Theory''':
'''Theory''':[[File:Viral myocarditis focal cell necrosis.png|thumb|Evidence number 1 for focal cell necrosis]]Two findings are characteristic for myocarditis: focal lymphocyte accumulation and focal cell necrosis. We can see two evidences for focal cell necrosis:
 
Two findings are characteristic for myocarditis: focal lymphocyte accumulation and focal cell necrosis. We can see two evidences for focal cell necrosis:


# Areas where there are no nuclei
# Areas where there are no nuclei
# Areas that are wavy/cloudy in appearance
# Areas that are wavy/cloudy in appearance
 
[[File:Viral myocarditis focal cell necrosis 2.png|thumb|Evidence number 2. This is what I mean by wavy/cloudy parts|left]]
[[File:Viral myocarditis overview.png|center|thumb|Overview. Kinda looks like a smiley face. The marked section is the best one to examine.]]
[[File:Viral myocarditis focal cell necrosis.png|center|thumb|Evidence number 1 for focal cell necrosis]]
[[File:Viral myocarditis focal cell necrosis 2.png|center|thumb|Evidence number 2. This is what I mean by wavy/cloudy parts]]
[[Category:Pathology 1 - Histopathology slides]]
[[Category:Pathology 1 - Histopathology slides]]

Latest revision as of 13:23, 5 July 2024

Overview. Kinda looks like a smiley face. The marked section is the best one to examine.

Staining: HE

Organ: Myocardium

Description:

We can see many sections of myocardium. The myocardium has many focal accumulations of lymphocytes. Some foci of the myocardium contain no cells, and some have an abnormal cloudy/wavy appearance.

Diagnosis: Viral myocarditis

Causes:

  • Coxsackie virus

Theory:

Evidence number 1 for focal cell necrosis

Two findings are characteristic for myocarditis: focal lymphocyte accumulation and focal cell necrosis. We can see two evidences for focal cell necrosis:

  1. Areas where there are no nuclei
  2. Areas that are wavy/cloudy in appearance
Evidence number 2. This is what I mean by wavy/cloudy parts