Papulosquamous (psoriasiform) pattern:
extensive involvement of the upper chest and confluence to form wide patches
involvement of the upper back. Click for details
A 34 year old male patient. SLE onset at the age of 26 with arthralgia, malar rash, leukopenia, thrombocytopenia, renal involvement with nephrotic syndrome, antinuclear and anti-nDNA antibodies. Shortly after summer sun exposure, he presented with a symmetric eruption of papulo-squamous lesions with confluence to form wide plaques on the upper trunk and extensor surface of the arms. A significant rise in the proteinuria accompanied the skin rash.
He was treated with high-dose oral steroids. The rash rapidly resolved leaving scattered irregular areas of hypopigmentation and telangectasias.