IPLab:Lab 9:RMSF

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Clinical Summary[edit]

This 9-year-old child was admitted with headache, fever, and a morbilliform rash on the arms and legs. There was a history of a tick being removed from her back. By the time a biopsy was performed, the rash had become petechial. Antibiotics were given and the child recovered within one week.

Biopsy Findings[edit]

A skin biopsy of this patient's lesion was stained with hematoxylin and eosin. A different section was also stained with an immunoperoxidase technique using antibody against Rickettsia rickettsii. Organisms were demonstrated in the endothelial cells.


Virtual Microscopy[edit]

Study Questions[edit]

Additional Resources[edit]


Journal Articles[edit]


Morbilliform means measles-like.

A thrombus is a solid mass resulting from the aggregation of blood constituents within the vascular system.