History

• Fever, malaise, chills, fatigue
• Increasingly tender and aching patches on the legs, mainly below the knee.
• Eruptions often preceded by symptoms of pharyngitis or other upper respiratory infection
• Headache
• Arthralgias (rare)

• Initially warm, tender, brightly erythematous nodules, which may be raised, on anterior shins. Lesions become bluish and fluctuant, gradually fading to yellowish resembling a bruise.
• Can also occur on any area with subcutaneous fat
• Diameter 1–15 cm