Presentation
Right knee pain.
Patient Data
Age: 75 years
Gender: Male
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Periosteal reaction around the right knee without an underlying bone lesion.
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The subsequent chest radiograph revealed a right upper lobe lung mass, which ultimately was biopsy-proven lung adenocarcinoma.
Case Discussion
Periosteal reaction around the right knee joint without an underlying bone lesion; hypertrophic osteoarthropathy secondary to primary lung cancer in this case.
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