Diagnosis Strategies

A 54-year-old woman with a history of mitral valve replacement and warfarin therapy presented to the emergency department with worsening right lower extremity pain.

A 68-year-old woman presented to the dermatology clinic with a 3-year history of purpuric nodules on the right lower extremity.

A 28-year-old previously healthy man presents with a steadily worsening illness characterized by fevers and profound malaise. Although previously healthy with no major medical diagnoses or required...

A 12-year-old boy presented to the emergency department with worsening right eye pain, redness, photophobia, eyelid swelling, and blurred vision. His symptoms began 3 days after being struck in the right...

A late-term newborn, born at 41 weeks and 1 day gestation to a 31-year-old G5P4 mother, developed erythematous nodules on the right shoulder on day 2 of life during routine inpatient evaluation.

A 72-year-old man was referred to the emergency department by his primary care physician (PCP) for evaluation of dizziness and gait instability.

A 9-year-old boy presented to the emergency department with a facial eruption that emerged following a weekend camping trip. Four days after the trip, the patient developed a progressively worsening rash...

A 76-year-old man reported right ear pain of more than 2 weeks’ duration that began while he was at the beach during the summer.

A 35-year-old woman with systemic lupus erythematosus, antiphospholipid syndrome, chronic urticaria, asthma, Hashimoto thyroiditis, and recurring seizures presented to dermatology with a 3-month rash. ...

A healthy 4-month-old infant girl presented to the clinic with her mother after the mother noticed the infant scratching an itchy rash on her torso.