Clinical introduction A 24-year-old Filipino man attended the ED with a 1-month history of a discrete swelling over his upper anterior chest wall that was rapidly increasing in size and tenderness. He denied any other symptoms. His medical history was unremarkable.
Examination revealed a tender, 7 cm × 6 cm mass over the upper part of the sternum (figure 1). The surface was smooth, it was immobile, non-compressible and the overlying skin was normothermic but mildly erythematous. Cervical lymphadenopathy was present. His vital signs were normal.
Question What is the most likely diagnosis?
Mycobacterium tuberculosis (TB)
- chest - non trauma
- global health
- imaging, ct/mri
- infectious diseases, bacterial
- musculo-skeletal, soft tissue infection
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