Red Flags

A 7-year-old boy has complained of pain in both thighs and an intermittent limp for one month. He is pale but afebrile, and there is no joint swelling; both hip…

A 69-year-old man presents with 2 months of progressive low back pain that is worse at night and is not relieved by rest. He has lost 6 kg unintentionally and h…