Dermatology clinic

Purpura after physical activity

Dermatology clinic

Purpura after physical activity

JOSEPH JOSEPH, KELVIN TRUONG, KAREN CHEUNG, Annika Smith

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Abstract

Test your diagnostic skills in our regular dermatology quiz. What has caused this asymptomatic erythematous patch on a patient’s calf?

Article Extract

Case presentation

A 61-year-old man presents with a new, asymptomatic cutaneous eruption involving his right calf (Figure 1a). He is systemically well, without fever, arthralgia or abdominal pain, and he denies any obvious triggers, such as infectious symptoms, new medications or trauma.