Unknown Case 25

71 y/o F with multiple household animals presents with fever and a palpable area in the left axilla. What is the most likely diagnosis?


  • Introduction of Bartonella Henselae by scratch/bite
  • Patient has painful unilateral or regional lymphadenopathy
  • Treated with or without antibiotics and symptoms subside in a few weeks
  • Follow-up US imaging can be performed to ensure resolution/appropriate post-treatment changes

Related Radiology Article:Cao MM, Hoyt AC, Bassett LW. Mammographic signs of systemic disease. Radiographics. 2011 Jul;31(4):1085-100.