Test your diagnostic skills in our regular dermatology quiz. What is the cause of this patient’s skin-coloured nodules and other skin lesions and her occasional widespread pruritis?
History and examination
A 42-year-old woman presents with pale skin-coloured nodules on her left forearm that have developed over the last few years (Figure 1a). Similar lesions are present on her posterior trunk, face and neck, but she is unsure when these appeared (Figure 1b). She reports occasional pruritus, which is not always localised to the nodules and can be widespread. The lesions do not cause pain or dysesthesia and have not increased in size.