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    Compare 
    the pathological image-left and the physiological image-right 
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  H: 
  Young man (22), fever (38°C), Pain in his ankles. Painfull, nodular swellings 
  praetibial.
 
  INFO/WWW-LINKS: 
    SARCOIDOSIS 
    - The cause of this disease is unknown. Sarcoidosis is characterized by non-caseating 
    granulomata and may affect any organ (extrathoracic sarcoidosis e.g. erythema 
    nodosum) at any age. Most commonly it affects chests of young adults, especially 
    blacks. 
 
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