Difference between revisions of "Subcutaneous Mycoses"

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Line 38: Line 38:
 
**Nodules ulcerate discharging pus
 
**Nodules ulcerate discharging pus
  
*Spread via the lymphatics
+
*Spread via the [[Lymphatic System - Anatomy & Physiology|lymphatics]]
  
*The bones and viscera can be involved which terminates in mortality
+
*The [[Bones and Cartilage - Anatomy & Physiology|bones]] and viscera can be involved which terminates in mortality
 
**This is rare
 
**This is rare
 
**Reported in dogs and horses
 
**Reported in dogs and horses
Line 48: Line 48:
  
 
*Single cell, cigar shaped
 
*Single cell, cigar shaped
**Usually found within neutrophils
+
**Usually found within [[Neutrophils - WikiBlood|neutrophils]]
 
**Yeast cell clusters with peripheral eosinophilic rays can be seen in tissue sections
 
**Yeast cell clusters with peripheral eosinophilic rays can be seen in tissue sections
  
Line 56: Line 56:
  
 
*Grows on Blood agar and Sabouraud's Dextrose agar in one to three weeks
 
*Grows on Blood agar and Sabouraud's Dextrose agar in one to three weeks
 
+
**At 37°C:
*At 37°C:
+
***Colonies are smooth, cream to tan coloured and soft
**Colonies are smooth, cream to tan coloured and soft
+
***No mycelium can be seen
**No mycelium can be seen
+
**At 25°C to 27°C:
 
+
***Colonies turn from white and soft to tan to brown to black
*At 25°C to 27°C:
+
***Leathery, wrinkled and coarse
**Colonies turn from white and soft to tan to brown to black
+
***Mycelium can be seen as branching septate hyphae
**Leathery, wrinkled and coarse
+
***Conidiospores can also be seen
**Mycelium can be seen as branching septate hyphae
 
**Conidiospores can also be seen
 
  
 
*Potassium iodide treatment orally
 
*Potassium iodide treatment orally

Revision as of 18:22, 3 May 2009



Infectious agents and parasitesWikiBugs Banner.png
FUNGI



Chromoblastomycosis

Chromomycosis

Epizootic Lymphangitis

Eumycotic Mycetoma

Hyphomycosis

Pythiosis

  • Mycotic swamp fever

Rhinosporidiosis

Sporotrichosis

  • Sporothrix schenckii
  • Occurs in soil, wood and vegetation
  • Worldwide
  • Exogenous infections through wounds
  • Causes subcutaneous nodules or granulomas
    • Nodules ulcerate discharging pus
  • The bones and viscera can be involved which terminates in mortality
    • This is rare
    • Reported in dogs and horses
  • Affects dogs, horses, cats, monkeys, mules, camels, donkeys, cattle, fowl and rodents
    • Most commonly seen in horses as an ascending lymphocutaneous infection of the legs
  • Single cell, cigar shaped
    • Usually found within neutrophils
    • Yeast cell clusters with peripheral eosinophilic rays can be seen in tissue sections
  • Stained using PAS, fluorescent antibody and Calcofluor White
  • Latex agglutination and immunodiffusion serology can be performed
  • Grows on Blood agar and Sabouraud's Dextrose agar in one to three weeks
    • At 37°C:
      • Colonies are smooth, cream to tan coloured and soft
      • No mycelium can be seen
    • At 25°C to 27°C:
      • Colonies turn from white and soft to tan to brown to black
      • Leathery, wrinkled and coarse
      • Mycelium can be seen as branching septate hyphae
      • Conidiospores can also be seen

Further Links