An 18-year-old female with a pet cat presents to clinic with a 3-week history of fever (38.5°C), malaise, and tender left axillary lymphadenopathy. She recalls a cat scratch on her left forearm approximately 3 weeks prior. On examination, she has a small, indurated, painless papule at the scratch site with significant regional lymphadenopathy. She denies constitutional symptoms beyond the fever. Laboratory studies show a normal white blood cell count with normal differential. Serologic testing is positive for Bartonella henselae antibodies. Which of the following is the most likely diagnosis?
- A)Mycobacterium marinum infection with sporotrichoid lymphangitis
- B)Cat scratch disease (Bacillary angiomatosis)
- C)Toxoplasmosis with regional lymphadenopathy
- D)Sporotrichosis with lymphangitic spread
- E)Cat scratch disease (Bartonella henselae) with regional lymphadenopathyGABARITO
Explicação
This patient presents with the classic triad of cat scratch disease: (1) history of cat contact with a scratch/bite wound, (2) painless papule at the inoculation site, and (3) regional lymphadenopathy developing 1-3 weeks later with systemic symptoms (fever, m... Ver explicação completa e trilha adaptativa →