Cat-scratch disease: Difference between revisions
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==Clinical Features== | ==Clinical Features== | ||
[[File:Cat-scratch disease lesion.jpg|thumb|A lesion on the hand of a person with cat-scratch disease.]] | |||
[[File:Cat-scratch-disease.jpg|thumb|Enlarged lymph node in axilla with cat scratch on hand.]] | [[File:Cat-scratch-disease.jpg|thumb|Enlarged lymph node in axilla with cat scratch on hand.]] | ||
*History of cat (normally kitten) exposure | *History of cat (normally kitten) exposure | ||
Revision as of 21:29, 9 September 2020
Background
- Caused by Bartonella henselae
Clinical Features
- History of cat (normally kitten) exposure
- Most commonly present about 2 weeks after exposure
- Lymphadenitis proximal to exposure
Parinaud's oculoglandular syndrome
- Due to direct inoculation of the eye
- Causes conjunctivitis, ocular granuloma, periauricular adenopathy
Differential Diagnosis
Evaluation
Work-up
- Indirect fluorescence assay (IFA) or ELISA testing
Evaluation
- Generally clinical diagnosis
Management
- Immunocompetent
- Adult (>45kg): Azithromycin 500mg PO x1, then 250mg/day x 4 days
- Child (<45kg): Azithromycin 10mg/kg x1, then 5mg/kg per day x 4 days
Disposition
- Admit if immunocompromised or evidence of systemic disease.
- Otherwise discharge with PCP follow-up.